My son at age one had mecels diverticulous, and had to have surgery it was a twist in his intestines, his was a birth defect but now I would consider any stomach pain to be an emergency trip to ER. After seeing the pain this baby was in and hearing later that the DR didn't think he would make it, It really would scare me. Unless this is something different.
He is at the age of 26 now having problems with his stomach again. Hope it it nothing like his was, we almost lost him!!