Can Too many x-rays over abdomen cause problems later?

I swallowed a quarter when I was 7 and ended up ping it naturally a month later and ended up having over 15 xrays done in one week! Now im almost 20 and have battled (so-called) IBS for over 6 years. Its severe and has become handicapping. I cant work and cancel plans constantly. Ive also suffered 2 misscarriages and 1 complicated full term pregnancy. I was wondering if all the radiation had somehow caused problems in my intestines and problems with my female anatomy also. BTW: Ive had a colonoscopy, barrium swallow and many other tests to rule out anything else it could be.