Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Call emergency services for chest pain, severe shortness of breath, fainting, new weakness on one side, confusion, or a severe headache with a racing heartbeat and sweating.
If you have adrenal insufficiency, follow your emergency plan during vomiting, serious illness, injury, or an adrenal crisis.
Severe weakness, repeated vomiting, fainting, confusion, or inability to keep replacement medicine down requires emergency care.
Seek urgent medical care for repeated episodes of severe headache, pounding heartbeat, sweating, or very high blood pressure.
These can be signs of a pheochromocytoma releasing excess hormones.
Arrange routine medical follow-up if you have a RET variant, even when you feel well.
Contact your MEN2 team if you develop a new neck lump, ongoing hoarseness, trouble swallowing, repeated headaches with sweating or palpitations, kidney stone symptoms, or persistent digestive changes.
Every sign above is quoted from the sofidex article on Multiple endocrine neoplasia (MEN) II. If you are not sure, err upward — it is always reasonable to be checked.