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:
New confusion, difficulty waking, or a seizure
Severe breathing difficulty
Fainting or signs of very low blood pressure
Blue, grey, or unusually pale lips or skin
Rapid worsening with extreme weakness
Emergency care is not usually needed for mild, steadily improving tiredness alone.
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 urgent, same-day medical care if you develop fever with severe headache, rash, or an eschar after possible exposure to fleas, lice, or mites.
This is especially important after travel to a region where typhus occurs.
Do not wait for every typical symptom to appear.
Also seek prompt advice if you have already started treatment but are getting worse, cannot drink, repeatedly vomit, pass much less urine, or your fever returns.
3
Does any of this apply?
Book an appointment
Routine follow-up is appropriate after treatment if recovery is continuing but fatigue or reduced stamina remains.
Every sign above is quoted from the sofidex article on Typhus. If you are not sure, err upward — it is always reasonable to be checked.