Allergy stomach cramps..?

Ok, so for about 9 months to a year now, I have had stomach "cramps" every time I eat eggs, like hard boiled, cooked, etc. Even egg substitutes. About 5 hours after I ingest them, my stomach has this pain, but no bathroom or vomit type problems at all. It's like a cramp. I'm a 15 year old male. What do you think it is? It has just recently started. I love eggs, also. What should i do?