Suggest Treatment For Weakness And Weight Loss After Colonoscopy

HI, I am trying to figure out why I feel so lousy, had a colonoscopy on 4/22 had 2 polyps removed and had an infection (diverticulitis?), was given 2 antibiotics cipro and metrodinazole, was supposed to take it for 7days at the end of the 5th I was sooooo sick, called the MD, he told me to stop taking it, that was on Mon.27 had a different kind of stool dark and grainy, not red or black, I was told it would go away, it is still about the same... Have been feeling weak and lost a bit of weight about 3-4lbs, eating ok, at times a bit moody, I am a very positive person this is sort of rare.......started thinking about a couple of bites I had not long ago at the park, it did develop into a reddish bulls eye type.....I looked up lyme disease symptoms and I have a couple of them, should I worry??? what to do??