Hello, Ive Been Suffering From Stomach Issues For The Past

Hello, ive been suffering from stomach issues for the past ten years, however in the past 6 months maybe a year things have been getting alot worse, ive always needed to make a bowel movement immediately after eating, but lately ive been getting a pulsating or almost tingling feeling in my anus, not to mention it can take two full rolls if not more of toliet paler to get myself clean. Its truly become nearly an hour or make a bowel movement. I have intense sharp pains which occur randomly. You see i am 25 years old, id like an idea of whats wrong with me, im fairly active eat pretty decent, i used to smoke however quit two years ago, not a high stress type of person. I need your help.