Functional neurological disorder: when to get help
Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
1
Is any of this happening now?
Call 911
Seek emergency help for:
New facial drooping, one-sided weakness, speech difficulty, or sudden vision loss
A sudden, unusually severe headache
A first seizure-like episode or a clearly different type of episode
An episode lasting more than five minutes, repeated episodes without recovery, serious injury, or breathing difficulty
Chest pain, severe shortness of breath, or loss of consciousness without prompt recovery
Immediate risk of self-harm or suicide
These symptoms can have causes that need rapid assessment, even if you already have FND.
And for anyone, someone who:
has sudden weakness or drooping on one side of the face or body, slurred speech, or sudden confusion
Other emergency signs, for anyone
Someone who is struggling to breathe, gasping, choking, or cannot get words out
Someone who has chest pain, tightness or pressure lasting more than a few minutes
Someone who is unconscious, or cannot be woken
Someone who is bleeding heavily and it will not stop with firm pressure
Someone who has had a seizure that will not stop, or does not wake up afterwards
Someone who has lips or skin that look pale, blue, grey or blotchy
Someone who you believe has taken an overdose or swallowed something poisonous
2
Is any of this happening?
Be seen today
And for anyone, someone who:
has a new severe headache unlike any they have had before
3
Does any of this apply?
Book an appointment
Arrange routine medical follow-up if established symptoms are becoming more frequent, causing falls, limiting eating or drinking, or preventing normal activities.
You should also seek review for new symptoms, medication side effects, worsening mood, or uncertainty about how to follow your treatment plan.
The article also says
Do not assume that a sudden or unfamiliar symptom is FND.
Every sign above is quoted from the sofidex article on Functional neurological disorder. If you are not sure, err upward — it is always reasonable to be checked.