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
Call emergency services for:
Sudden weakness or numbness, especially on one side
Sudden trouble speaking, understanding, seeing, or walking
A sudden severe headache or loss of consciousness
New seizure activity
Rapid confusion with severe illness, breathing difficulty, or inability to wake
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 has sudden weakness or drooping on one side of the face or body, slurred speech, or sudden confusion
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
Seek prompt medical advice for a noticeable decline over days or weeks, repeated falls, new swallowing problems, hallucinations, major behaviour changes, or difficulty managing medicines, meals, or personal safety.
These symptoms can indicate stroke or another urgent condition.
Do not wait to see whether they pass.
3
Does any of this apply?
Book an appointment
Arrange a routine medical assessment if you or someone close to you notices persistent slowing of thought, planning problems, loss of motivation, walking changes, or increasing difficulty with everyday tasks.
Earlier assessment can identify medication effects, depression, sleep problems, vitamin deficiencies, or other treatable contributors.
Every sign above is quoted from the sofidex article on Subcortical dementia. If you are not sure, err upward — it is always reasonable to be checked.