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 if you have:
Severe or rapidly worsening difficulty breathing
Noisy breathing, blue or gray lips, fainting, or new confusion
Rapid swelling of the face or neck, especially with breathing problems
Sudden severe chest pain
New severe weakness affecting breathing or swallowing
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
Seek urgent medical advice the same day for increasing shortness of breath, new swelling of the face or arms, coughing up blood, difficulty swallowing liquids, or rapidly worsening muscle weakness.
If you are receiving cancer treatment, follow the urgent-contact instructions provided by your treatment center.
Fever, chills, unusual bleeding, or sudden illness may need prompt assessment.
3
Does any of this apply?
Book an appointment
Arrange a routine medical appointment for a persistent cough, unexplained chest pressure, ongoing hoarseness, repeated night sweats, or unexplained weight loss.
These symptoms have many possible causes and do not necessarily mean that a tumor is present.
Every sign above is quoted from the sofidex article on Mediastinal tumor. If you are not sure, err upward — it is always reasonable to be checked.