On this page
How it can feel
- Bone-deep tiredness that sleep does not fully fix.
- Paying for a short outing with a day in bed.
- Cognitive fog rising as energy falls.
- Looking “okay” while running on empty.
Day to day
- Work, parenting and social life shrink to fit the battery.
- Boom-and-bust cycles: push on a good morning, crash by evening.
- Guilt about rest — especially when symptoms are invisible.
How this can relate to FND
Fatigue is not laziness. Nervous-system load, disrupted sleep, pain, deconditioning and the cost of symptoms all drain capacity. Chronic fatigue patterns can co-exist with FND.
What can help
- Pacing and planned recovery, not heroic overdoing.
- Sleep support and treating night-time symptoms.
- Breaking tasks into smaller chunks with rests.
- Communicating energy limits to work and family.
- See also our pacing and symptom-hangover guides on the main site.
This is information, not a treatment plan. Personal care decisions belong with you and your clinicians.
FAQs
Why am I more tired the day after activity?
Delayed crashes are common. That lag is why pacing looks at the whole 48 hours, not only how you feel mid-task.
About this guide & further reading
Written and published by FND Connect. This is general information for people living with FND and those supporting them. It does not diagnose a symptom or replace advice from your clinician.
- Neurosymptoms: Fatigue
- North Bristol NHS Trust: functional neurological symptoms
- Neurosymptoms: when new or different symptoms need reassessment
External resources provide further reading; their inclusion does not mean their authors have reviewed or endorsed this FND Connect guide. Page updated 3 October 2026.
Take this to your next conversation
Note what happens, how it affects your day and what you want to ask. An appointment pack can help you organise that conversation.