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:
A first seizure, a seizure lasting several minutes, or repeated seizures
Sudden weakness, numbness, facial drooping, speech trouble, or vision loss
Loss of consciousness or difficulty waking
A sudden, severe headache, especially with vomiting or confusion
Rapidly worsening confusion, behavior change, or difficulty walking
These symptoms can also be caused by stroke or other emergencies.
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
Do not wait for a routine cancer appointment.
Contact your cancer team promptly for a new or steadily worsening headache, new balance trouble, increasing sleepiness, memory changes, vomiting, or breakthrough seizures.
Symptoms that interfere with taking medicines, eating, drinking, or safely managing at home also need prompt advice.
3
Does any of this apply?
Book an appointment
Routine follow-up is used to review stable symptoms, treatment side effects, rehabilitation needs, and scan results.
Keep these appointments even when you feel well, because small metastases may not cause early symptoms.
Every sign above is quoted from the sofidex article on Metastatic brain tumor. If you are not sure, err upward — it is always reasonable to be checked.