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
Seek emergency help if bloating occurs with sudden or severe abdominal pain, fainting, difficulty breathing, vomiting blood, or a hard and very tender belly.
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
Get urgent, same-day medical advice if your belly is becoming increasingly swollen and painful, especially if you are vomiting or cannot pass stool or gas.
These symptoms can occur when the bowel is blocked.
Also seek prompt advice for fever, blood in your stool, or black, tar-like stool.
And for anyone, someone who:
has abdominal pain that is severe, constant, or getting worse
3
Does any of this apply?
Book an appointment
Book a routine appointment if bloating:
Happens regularly or is getting worse
Continues despite simple diet and bowel-habit changes
Comes with unexplained weight loss or reduced appetite
Occurs with ongoing diarrhoea, constipation, or abdominal pain
Causes frequent early fullness or difficulty eating
Is new and persistent, particularly after menopause
These features do not necessarily indicate a serious cause, but they should be assessed rather than managed through repeated food restriction.
Every sign above is quoted from the sofidex article on Bloating. If you are not sure, err upward — it is always reasonable to be checked.