Hello there.  I can understand your concern.  Do you vomit also? You might be having a type of allergy to fish and may be all sea foods. Its better to avoid them altogether.  Tab. Pan-D once or twice a day before food for 3 days. Consult a general physician in person for further evaluation and management. Best regards. Dr. Anil kumar jain. Bangalore.

Dear friend, I guess i have answered your question already. That might be a mild form of sea food allergy. Avoid sea foods and consume only fish from other sources. Hope this helps. Regards.