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 severe difficulty breathing, coughing up more than a small streak of blood, a seizure, collapse, or chest pain with fainting or severe weakness.
Follow any emergency instructions and contact numbers supplied by your cancer team.
During chemotherapy, their advice may use a specific temperature threshold.
And for anyone, someone who:
If you have already been diagnosed, contact your cancer team promptly about new or worsening symptoms, including increasing pain, difficulty swallowing, new headaches, balance changes, confusion, weakness, or treatment side effects.
Seek urgent same-day medical help for:
Arrange a routine medical appointment for a persistent or changing cough, unexplained breathlessness, repeated chest infections, chest pain, weight loss, or worsening tiredness.
These symptoms do not necessarily mean cancer, but they should be assessed.
And for anyone, someone who:
Every sign above is quoted from the sofidex article on Lung cancer - small cell. If you are not sure, err upward — it is always reasonable to be checked.