Upset Stomach from Cold Shellfish

I get severe stomach cramps that lasts a few hours, diarrhea and nausea when I eat COLD shellfish. So far, I have reacted to cold shrimp, crab and lobster. I don't seem to react to newly cooked shrimp or crab. I haven't tried freshly cooked lobster yet. Does anyone have any idea what's wrong with me?

[coughting]

Sounds like you may be developing an allergic reaction to these.   Be very careful as it can get worse quickly.

I would not eat any shellfish.  I am allergic and get food poisoning symtoms (symptoms) from it.  Others have had there throat close.  You can have it tested, ask your dr, then you will know if you need to completely eliminate it from your diet.