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 medical help for severe difficulty breathing, chest pain, fainting, sudden loss of vision, a seizure, new one-sided weakness, or sudden confusion.
These symptoms can have several causes, but they require immediate assessment.
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
Contact your specialist team promptly for:
A new change in thirst or urination
Increasing pain, swelling, cough, or breathlessness
New visual symptoms or swelling around an eye
Persistent fever or signs of infection during treatment
New weakness, numbness, balance problems, or severe headache
3
Does any of this apply?
Book an appointment
Arrange a routine medical appointment if you develop an unexplained skin lump, persistent swollen lymph node, ongoing bone pain, or symptoms that do not improve.
If you already have histiocytosis, report new or steadily worsening symptoms rather than waiting for the next planned review.
Every sign above is quoted from the sofidex article on Type II histiocytosis. If you are not sure, err upward — it is always reasonable to be checked.