i am 27 yrs old female, 5 ft 3, 155 lbs, ever since having my baby who is 4 ive been overweight , have an ulcer and gastro issues since a young teen, peptic turned bleeding ulcer, my stool is now irregular, daily. runny, varies in color, diareah-like, always, foul smelling, discomforting, and has mucous sometimes and sometimes comes out stringy, especially lately. I have a normal solid stool maybe once a wk if that.. what can it be?