What kind of tests did you have done? What is your diet like now? This sounds like ulcetative colitis but if you had a negative colonoscopy, then i guess its ibs and food intolerances.
What medicines have you tried?
2-4 bms/day. c diff since jan 2013. last 2 tests were negative
current: vit D, l-glutamine, benebiotics, vsl, bac. coagulans, iron, sod. butyrate
Diet: paleo-meat, coconut oil, kefir/yogurt, fruit/veg
previous: canasa, rowasa, entocort, pred, 6mp, remicade, humira, lialda, welchol, bentyl, LDN, cipro, flagyl, vanco, Vit E, 8 FT, clay, aloe, slip. elm, ivig, ferrlicet, venofer, b-12 shots