just had a prawn mayo sandwich and i dont feel so good..?

Could be the prawns. Could be the mayo. Or both.

Not much you can do about it now. Depending on how sick you get and for how long, you may need medical attention for IV fluids and/or antibiotics.

In general, the faster you get sick after eating bad food, the worse the course.

Sorry

Prawn Mayo Sandwich

Not sure if you have had this feeling first time after eating Prawns also depends whatyou mean by ill ? If its just feeling sick (nausea) then it could be either bad Mayo or even bad shellfish (prawn).

Allergies to shellfish, such as shrimps, prawns, lobsters, is not uncommon but you would have had the reaction like a a rash and onset is very quick (few min) !

Wait...you had prawns on mayo...I didn't even know that could be done...odd.

Anyway...a couple of hours at the most. If you had bad prawn..chances are...you'd know right off.

I'd say you'd be sick with in 6 hours or so! Things like that, that are bad, tend to react quickly with your body.

You could get food poisoning that will leave you feeling like you have a bad case of the flu!

drink plenty of fluid and try and stay calm. it may be that the sandwich has just triggered something off and your mind may be cooking up something horrible which in turn makes you feel even worse. seek medical advice if you are really worried though because seafood can be dangerous it not prepared and stored correctly.

any time you feel ill right after eating something, it's GOING to be food poisoning. You will start vomiting shortly. Have fun w/ that you limey bastard.

Food poisoning go see a doctor.

there's only one thing for it, a whole bag of spicy cheetos - export obviously.

Dpends

Hmm mayooo

:D