clostridial infection
"I have ulcerative colitis, and I tested positive for c diff and was put on Flagyl - 500 mg 4x/day.  The first 5 days I could function although I had no appetite and was dizzy and nauseated.  The last 6 days I was bedridden with nausea and vomiting, aversion to food, dizziness, and the skin on my legs went numb.  It's been a week now and the legs' skin is still numb, although it doesn't affect my mobility.  I don't want to eat anything still but the food doesn't come back up now.  However, all the symptoms of c diff are gone.  Seems to have calmed down the UC as well.  So yes, it worked very well so far but the side effects for me were horrendous."