I get itchy red bump all over my body and i dont have a food allergy, i have tried looking up the issue but none of are correct. do you know whats going on?

Hives: I assume you're not dealing with insect bites. The cause of hives is often elusive unless triggers can definitely be identified. An allergist.is best to consult for evaluation, advice and treatment. In the meantime try taking an antihistamine like Benadryl (causes drowsiness) or claritin (nondrowsy) for symptom relief.and also to report its effect to the specialist.