burning pain in the lower abdomom about 2 months , colonoscopy done and dr found slight diverticulitus but nothing else pain is agravated by having jeans and a belt on when i sit not to bad when sleeping , no other symtoms except for the burning discomfort , original diagnosis was constipation so i treated it for that (enema , stool softners , metimucal, ) constipation cleared out but still had pain , took antibiotics from my gastroenterologist just before colonoscopy this reduced pain but only after 7 days of taking a 10 day supply , the pain returned about 17 days later , treated with antibiotics again with no releif. any ideas.