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
These concerns usually need timely assessment, but they are not always emergencies.
Call emergency services if symptoms are severe, sudden, or make it unsafe to travel.
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 cancer team promptly for a new lump, persistent pain, worsening fatigue, unexplained weight loss, new breathlessness, jaundice, or a symptom that is steadily changing.
Also report treatment side effects that interfere with eating, drinking, sleep, movement, or usual activities.
Seek urgent medical assessment for:
New or severe back or neck pain with weakness, numbness, or difficulty walking
New loss of bladder or bowel control
A first seizure, sudden confusion, or new weakness on one side
A severe or rapidly worsening headache with vomiting or neurological changes
Sudden breathlessness, chest pain, coughing blood, or collapse
A painful limb that cannot bear weight after a minor injury
Marked drowsiness, confusion, or repeated vomiting
These signs can have causes other than metastasis, but they should not wait for a routine appointment.
Every sign above is quoted from the sofidex article on Metastasis. If you are not sure, err upward — it is always reasonable to be checked.