Hi Cheryl, I've never heard of A, B & C, only C for constipation and D for diarrhea. There are just these two forms of IBS that I am aware of. Take care, Lynn...
Evening everyone, I've been on here before, but it has been awhile. I went to the doctor today, just another check on things visit. I've had IBS-C for 26 years now with many more downs than ups. My...