Hi everyone... I have posted here before, but I dont think i introduced myself. I would like to start getting to know everyone, and would like to ask a few questions. If you have room for one more severe sufferer of IBS, I'll be posting here often.I am 20/female, living in NYC. I think I brought IBS on myself. For 3 years, I crash dieted, used suppositories or laxatives on and off, and over exercised (2 hours minimum a day) to lose almost 70 pounds. AND I AM PAYING FOR IT NOW!I was diagnosed in the beginning of the year (had endoscopy and colonoscopy) but the pain has worsened to the point where it is hell to leave the house at all. I still have a hard time accepting that it is IBS and not something else, but all my symptoms seem to match everyone else's here, so I am hoping that someone here will help me through this.I am type d, but most of the time, I just have pain. Whenever I do go, it is d. The pain is best described as the feeling that I am going to go in my pants (havent yet).My big question is....does smoking irritate IBS more. I smoke because I cant eat at all during the day or i wont leave the bathroom. Has anyone ever quit and had their symptoms become less dramatic?I am willing to give it up if necessary, and I know it is bad for health otherwise, but I am so addicted to it now that I will ONLY give it up if it will help this pain go away.Please help.......past experiences would help so much.PS: I started Caltrate Plus D on Saturday - havent felt a difference yet. I am also going for a sonogram on Friday...just to make sure there is nothing else messed up with me.