Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Seek emergency help for severe trouble breathing, chest pain, uncontrolled bleeding, a seizure, fainting, sudden confusion, or difficulty waking.
Your transplant centre may want you to call before attending an emergency department so staff can prepare for your infection risk.
During recovery, contact your transplant team promptly for any fever at or above the threshold they gave you.
Call the same day for a new rash, worsening diarrhoea, persistent vomiting, yellow skin or eyes, painful urination, unusual bruising, line redness, or difficulty taking medicines or fluids.
Do not wait for a routine appointment.
Every sign above is quoted from the sofidex article on Bone marrow transplant. If you are not sure, err upward — it is always reasonable to be checked.