I had a resection a year ago. My dr. told me at the time that the leftover bowl would eventually pick up for the loss and things would return to normal. I was the same as you. I never had D before my surgery unless I was in a serious flair. and then only occasionally. But now since my surgery I have had constant D. Same thing - I go about 5 times a day, sometimes up to 10 if it's a really bad day. She keeps telling me that things will get better, but i haven't seen a difference yet.
I hate to be the bringer of negative news. But everyone's body is different and i'm sure there are people on here that returned to normal bowl functioning. My dr. surgeon said that it could possibly take up to 2-3 years before mine returns to normal. I think you should definetly let your Dr. know and ask when they feel it will return to normal. My resection was of the large bowel, not small, so it very well might be different.
Sorry i'm not much of a help. I really hope you have better success than I.
diagnosed: Crohn's Aug 2005
other set-backs: Vasculitis Aug 2006, Sub-total Colectomy (10 inches of colon left) Feb 2007, Ogilivie's Syndrome Mar 2007, Pulmonary Embolism Sept 2007, Collapsed lung Oct 2007, Recto/Vaginal fistula Nov 2007
Asacol, Imuran, Remicade, Humira, Prednisone, Canasa, Fentanyl, Warfarin, TPN