Before surgery, I had active Crohn's and would get anemic and have blood transfusions, too. At its worst, my hemoglobin went down to a 6, and I was extremely exhausted, so I really feel for you.
Ever since my colon and rectum removal two years ago, I have been disease-free and my blood levels have been excellent, so this surgery will really help you, too.
Hang in there, October 6th is right around the corner!
Dx'd Crohn's in '99 at 28. Proctocolectomy and ileostomy in '06.