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 if you or another person:
May harm themselves or someone else
Cannot be kept safely away from traffic, heights, or other hazards
Has a seizure, collapses, or is difficult to wake
Has severe chest pain, major breathing difficulty, or extreme overheating
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
Arrange same-day medical advice when hyperactivity starts suddenly or comes with confusion, hallucinations, severe agitation, almost no sleep, or behaviour that is markedly out of character.
Prompt advice is also appropriate after a new medicine, a dose change, or possible substance use.
3
Does any of this apply?
Book an appointment
Book a routine appointment if hyperactivity lasts for several weeks, keeps returning, or affects learning, work, sleep, relationships, or emotional wellbeing.
For a child, consider asking teachers or other caregivers what they notice.
Behaviour that appears in several settings can help a clinician understand the pattern.
The article also says
Stay nearby if it is safe, reduce noise and stimulation, and avoid arguing with someone who is severely confused or agitated.
Every sign above is quoted from the sofidex article on Hyperactivity. If you are not sure, err upward — it is always reasonable to be checked.