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 care for severe abdominal pain with vomiting and an inability to pass stool or gas.
These symptoms can indicate a bowel blockage.
Fainting, chest pain, severe breathing difficulty, or sudden confusion also require emergency care, whatever the suspected cause.
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 assessment for repeated vomiting, worsening abdominal swelling, significant weakness, new numbness, or difficulty walking.
And for anyone, someone who:
has a fever with a stiff neck, a rash that does not fade under pressure, or severe headache
has a wound that is hot, spreading red, or leaking pus
3
Does any of this apply?
Book an appointment
Arrange a routine medical appointment if you:
Notice repeated pale, flat segments in your bowel movements
Have ongoing abdominal discomfort, diarrhea, or unexplained weight loss
Develop unusual tiredness, pale skin, or breathlessness
Have tingling, numbness, or problems with balance
Ate raw freshwater fish and later developed persistent digestive symptoms
These symptoms have many possible causes.
Stool and blood tests are needed to determine whether a fish tapeworm is responsible.
Every sign above is quoted from the sofidex article on Fish tapeworm infection. If you are not sure, err upward — it is always reasonable to be checked.