ALPIMS · Understanding & support
Anxiety & Autonomic
Similar symptoms. Different explanations. Support that considers both.
A racing heart, shaking, sweating or dizziness can occur with anxiety and with autonomic conditions. Explore the differences, conditions in this area and practical support that may fit your needs.
What is the difference?
Anxiety
Anxiety involves apprehension, fear or worry. It can activate automatic body responses, producing very real physical symptoms.
An anxiety disorder is more than occasional worry: symptoms persist or interfere with everyday life.
Autonomic function & dysautonomia
The autonomic nervous system helps manage heart rate, blood pressure, digestion, sweating and other automatic functions.
Dysautonomia means this regulation is not working as it should. Ordinary autonomic activation during anxiety is not, by itself, dysautonomia.
Where can symptoms overlap?
Palpitations, trembling, sweating, nausea, light-headedness and breathing discomfort may occur in both. Symptoms alone may not tell you the cause.
| Experience | A useful distinction |
|---|---|
| Racing heart or shaking | Can occur during anxiety or panic, and in POTS or other medical conditions. Heart rhythm, medicines and other causes may need assessment. |
| Worse when standing | A repeated upright pattern, especially with improvement when lying down, may suggest orthostatic intolerance. It does not establish POTS. |
| Fear, worry or a sense of danger | May be part of anxiety or panic, or a response to frightening bodily symptoms. Panic can begin without an obvious trigger. |
| Fainting or near-fainting | Feeling faint can occur during panic. Actual loss of consciousness should not automatically be attributed to anxiety. |
| Symptoms improve with calming | This does not prove anxiety was the cause. Rest, position and reduced demand may also change symptoms. |
References & further reading
Healthdirect: anxiety → Healthdirect: POTS → NIMH: panic disorder and physical symptoms → Healthdirect: fainting and possible causes →Anxiety & trauma-related conditions
Trauma-related conditions are included because they can involve anxiety and heightened arousal. They are distinct from anxiety disorders.
Generalised anxiety disorder
Persistent, difficult-to-control worry across different parts of life. It may involve tension, poor sleep, restlessness and difficulty concentrating.
Panic disorder & agoraphobia
Panic disorder involves recurrent unexpected panic attacks and ongoing concern or changes in behaviour. Agoraphobia involves fear of situations where escape or help may feel difficult.
A single panic attack does not establish panic disorder.
Social anxiety disorder
Significant fear of being scrutinised, embarrassed or negatively judged in social situations.
Sensory overload and communication access needs should also be considered.
PTSD & complex PTSD
Trauma-related conditions can involve distressing reminders, avoidance, disturbed sleep and feeling continually on guard.
Complex PTSD can also affect emotional regulation, self-worth and relationships.
What about other anxiety conditions?
Specific phobias and other anxiety disorders may also be relevant. OCD is a separate diagnostic category, although anxiety can be prominent.
Healthdirect: anxiety and related conditions → NIMH: overview of anxiety disorders →Autonomic conditions & experiences
Dysautonomia is an umbrella term. Orthostatic intolerance describes symptoms when upright and can occur in several conditions.
POTS
Postural orthostatic tachycardia syndrome involves an excessive heart-rate rise when upright, with symptoms such as light-headedness, palpitations, fatigue or difficulty thinking.
Diagnosis requires assessment, including consideration of other explanations.
Orthostatic hypotension
A drop in blood pressure on standing that may cause dizziness, blurred vision or fainting.
It differs from POTS and can have several causes, including medicines, dehydration or impaired autonomic regulation.
Vasovagal syncope
A reflex faint involving a fall in blood pressure and sometimes heart rate. Triggers can include prolonged standing, heat, pain or strong emotion.
An emotional trigger does not make the faint an anxiety disorder.
Autonomic neuropathy
Damage to nerves involved in automatic regulation may affect blood pressure, sweating, digestion or bladder function.
Some small fibre neuropathies involve autonomic nerves; not every small fibre neuropathy does.
Connections with other ALPIMS domains
More than one part of the picture may need support.
Anxiety and autonomic symptoms can occur alongside pain, connective-tissue conditions, immune concerns, mood difficulties and sensory needs.
Sometimes conditions are associated; sometimes their symptoms overlap or their everyday effects interact. This does not establish one shared cause.
Everyday support
Choose a topic that fits your needs. These practical ALPIMS pages are planned.
Comfort & reducing immediate demands
- Sensory comfort and a quieter environment Coming soon
- Rest breaks and manageable routines Coming soon
- Making standing, showering and meals easier Coming soon
- Joint support and comfortable positioning Coming soon
Emotional support & relationships
- Managing worry without dismissing physical symptoms Coming soon
- Grounding that respects sensory and trauma needs Coming soon
- Asking for calm company, predictability or practical help Coming soon
- Emotional support alongside physical healthcare Coming soon
Professional care & planning
- A short symptom summary for appointments Coming soon
- Sensory-aware and accessible appointments Coming soon
- Discussing medicines, sensitivities and side effects Coming soon
- An individual care and fainting safety plan Coming soon
- Coordinating care across several conditions Coming soon
Australian resources
Explore reliable information and practical resources. Choose one that feels useful—you do not need to read everything.
Anxiety, worry & panic
CCI offers free information sheets and workbooks. Use manageable sections and ask for help adapting exercises to your needs.
Anxiety resources can support anxiety alongside physical healthcare. They should not be used to dismiss unexplained physical symptoms.
Trauma & PTSD
Australian information about trauma and evidence-based care. A clinician can help you explore what is suitable and how to make treatment accessible.
POTS, blood pressure & fainting
Prepare a short description
If manageable, note a few examples rather than monitoring yourself constantly:
- What happened, and how long did it last?
- Were you lying down, sitting or standing?
- Was there worry, a reminder, heat or another trigger?
- What helped?
- Was there actual loss of consciousness?
“Could we consider anxiety, autonomic causes and other medical explanations, rather than assuming one cause?”
A clinician may review medicines and arrange heart-rate, blood-pressure or other checks. A home reading alone cannot establish POTS.
References & further reading
Healthdirect: POTS and assessment → Healthdirect: anxiety and care → NIMH: assessment and care for panic disorder → A short symptom and appointment summary · Coming soonOptions to explore
- Reduce one immediate demand or make the next step clearer.
- Ask for help with uncertainty, decisions or appointments.
- Discuss treatment if worry is persistent or limiting life. Psychological therapies and medicines are options; suitability is individual.
Predictability, communication adjustments and sensory comfort may make support easier to use.
Australian resources
Healthdirect: anxiety → CCI Western Australia: anxiety self-help resources →Further reading
NIMH: generalised anxiety disorder and treatment → Managing worry without adding pressure · Coming soonOptions to explore
- During a familiar episode, use your agreed care plan and ask for calm, practical support.
- Reduce immediate demands. Grounding is optional; choose something comfortable rather than forcing it.
- Discuss repeated attacks, fear of another attack or avoidance with a clinician.
New or unusual chest symptoms, breathlessness or fainting need appropriate medical assessment. Do not assume every episode is panic.
Australian resources
Healthdirect: anxiety and panic → CCI Western Australia: find panic self-help resources →Further reading
NIMH: panic disorder, agoraphobia and treatment → Support during panic or intense distress · Coming soonOptions to explore
- Ask for an agenda, written information or a quieter setting.
- Consider smaller groups or a trusted support person.
- If fear of judgement is limiting life, discuss suitable psychological support.
Fear of judgement, communication difficulty and sensory overload may need different supports. An access adjustment does not have to be removed to work on anxiety.
Australian resources
CCI Western Australia: find social anxiety resources → The Spectrum, Australia: anxiety and autism →Further reading
NIMH: social anxiety disorder → Supported social participation · Coming soonOptions to explore
- Prioritise safety, choice and predictable communication.
- Choose grounding that feels tolerable; stop or adapt anything that increases distress.
- Explore trauma-informed professional care at a manageable pace.
A trauma history does not explain every physical symptom. Trauma support and physical healthcare can sit alongside each other.
Australian resources
Phoenix Australia: trauma treatment and support →Further reading
NHS Inform: complex PTSD and treatment → Trauma-sensitive grounding and comfort · Coming soonOptions to discuss
- Seated versions of tasks and less prolonged standing.
- Adjustments for heat, showering and appointments.
- An individual plan for fluids, salt, compression, medicines and suitable movement.
Extra salt or fluid is not appropriate for everyone. If you also have ME/CFS or post-exertional malaise, activity advice needs to respect those limits.
Emotional support may help with distress, but it does not replace POTS assessment or treatment.
Australian resources
Healthdirect: POTS symptoms, diagnosis and management →Further reading
NHS: POTS → CDC: ME/CFS symptom management and pacing → Making upright tasks easier · Coming soonOptions to discuss
- Changing position slowly and allowing time before walking.
- Sitting down promptly if you become light-headed.
- A medicines review and an individual hydration plan.
Low blood pressure can have several explanations. Do not stop prescribed medicines or increase salt without discussing suitability.
Australian resources
Healthdirect: low blood pressure →Further reading
NHS: postural hypotension → Positional symptoms and safer routines · Coming soonOptions to explore
- If you feel faint, lie down if safe; avoid trying to walk through it.
- Discuss warning signs, triggers and a safety plan with your clinician.
- Seek assessment for recurrent or unexplained fainting.
Loss of consciousness needs its own explanation. A reflex faint can follow strong emotion without being an anxiety disorder.
Australian resources
Healthdirect: fainting, first aid and when to seek help → A clinician-guided fainting safety plan · Coming soonOptions to explore
- Describe the affected functions: standing tolerance, sweating, digestion or bladder symptoms.
- Discuss assessment for nerve involvement and possible underlying causes.
- Ask for coordinated care when several systems are affected.
Digestive, bladder or sweating symptoms alone do not establish autonomic neuropathy. They may have other explanations.
Australian resources
Healthdirect: sensory, motor and autonomic neuropathy →Further reading
Cleveland Clinic: small fibre neuropathy → Coordinating care for several symptoms · Coming soonALPIMS uses these areas to organise information. They are not diagnoses, and belonging to one area does not mean you have conditions in the others.
L — Laxity & connective tissue
Some people with hypermobile Ehlers–Danlos syndrome also experience POTS. This association does not mean everyone with flexible joints has dysautonomia.
Consider both joint support and upright tolerance when planning tasks, seating and physical care. Ask for advice suited to your combination of needs.
Joint support and upright-task adaptations · Coming soonP — Pain & bodily sensitivity
Persistent pain and anxiety can coexist and influence sleep, concentration and participation. Small fibre neuropathy may involve both pain-sensing and autonomic nerves.
These are different kinds of connection. Pain should not automatically be explained by anxiety.
Combine physical comfort and appropriate pain care with emotional support where needed. Adapt grounding or relaxation if body-focused exercises increase discomfort.
Comfort when pain and distress overlap · Coming soonI — Immune & inflammatory concerns
Some allergic reactions can cause symptoms that resemble panic or autonomic symptoms, including breathing difficulty or dizziness. Similar sensations do not establish the cause.
Anxiety, POTS or general sensitivity alone does not establish an allergy or mast cell activation syndrome.
Keep any prescribed allergy action plan accessible. Discuss suspected reactions with an appropriate clinician. Do not use calming techniques in place of emergency treatment for a suspected severe allergic reaction.
Reaction plans and distinguishing symptom patterns · Coming soonM — Mood & mental health
Anxiety and depression can occur together. Living with unpredictable physical symptoms may also affect emotional wellbeing.
Emotional distress deserves care without being used as the explanation for every bodily symptom.
Ask for support that considers mood, physical symptoms, sleep and everyday functioning together. Practical help and psychological care can complement medical care.
Emotional support alongside physical healthcare · Coming soonS — Sensory & neurodevelopmental needs
Sensory overload, uncertainty and communication demands may contribute to anxiety in autistic people. Differences in noticing or interpreting internal body signals may also make symptoms harder to describe.
Sensory overload is not automatically an anxiety disorder. Autism or ADHD does not, by itself, establish dysautonomia.
Offer quieter surroundings, predictable steps, written information and time to respond. Consider access needs alongside anxiety treatment.
Sensory-aware appointments and emotional support · Coming soon“Which needs require separate assessment, and which practical supports could help several parts of my day?”