My Son Is 7 Years And 1 Month Old. I

My son is 7 years and 1 month old. I have recently put a bunch of random issues together and am wondering if he might be diabetic. He still wets the bed. He is often sick. He complains VERY often of a stomach ache in the same spot every time. Next to his belly button. He is so thin and I have a hard time getting him to eat.