He can't explain it because he doesn't know, or care enough to find out. You're absolutely right in not accepting this excuse. Get a second opinion and not one from anyone associated with him. My son had stomach pain after
removal of his colon
, his doctor told him it was scar tissue and to live with it. He insisted something was wrong and opted for exploratory surgery
, he had a large tumor attached to his aorta. and we lost him at 31. So, I'm a big advocate for 2nd, 3rd and 4th opinions.