Does anyone have any experience of methyl cellulose - I think it's called celevac? I have to take laxatives and struggle with all of them. Fibogel is no use and Movicol has it's drawbacks even though it works - I end up with the runs after a few days on it despite reducing the dosage. I'm wanting to try another bulk softener (have tried Normacol but it gives me horrible cramps) and I need some advice. Diet/exercise don't make a difference to me since I had a hysterectomy 5 years ago, so even though I am good with both, I need help!