Answers:
Yes if you hold an allergy, such as Iodine, which can be found surrounded by some stalt dampen fish. If you freshly perceive unwell it could be food poisioning, so run see a doctor.
Other Answers:
if youre allergic to a clear in your mind fish, or sensitive to mercury contained by it
Yes, you can procure worms from ingestion crude fish and some fish are poisonous.
Yes, especially if it's prehistoric and smelly.
Trust me I work surrounded by a Sea Food Department surrounded by a grocery store.
if the mercury content is too illustrious, later, u cld capture poisoning... but save for tt, i aint sure... unless u haf some sort of food allergy tt doesn't allow u from eatin fish...