Welcome to the ostomy board! I know that you probably would never have electively chosen to have an ostomy, but I would bet that once you are healed from surgery and recuperated, you will feel soooooo much better - just getting all that disease out of your body. It's been many years for me and I still wish that I would have agreed to have my perm ileostomy done much sooner than they had to. It will literally give you your life back. Having any kind of surgery is no picnic ... that's a given. BUT once it all heals, you will wish you had it done long before.
When I had my surgery done, they removed the rectum, what I had left of the colon after many resections to avoid having a perm ileo, and some of my small intestine as well. That was in 1984. They did sew my anus and it healed very well. Tender to sit for a little while, but it has no use now.
Re: "D"... it is an individual thing. Different foods affect different people. Since I had a portion of my small intestine removed, my transit time is fairly quick. I do take come imodium to slow the transit down. Not everyone has to do this tho. And, some foods that bother you now may never both you again. There may be some restrictions and then slowly "challenge" new foods in small portions. Most importantly, be sure to drink lots and lots of fluids. Folks with ileostomies can dehydrate easily if the transit time is fairly quick. Stands to reason that if you lose a lot of fluid via the ostomy, you need to increase your intake.
Best of luck to you and feel free to ask any and all questions. WE will help you thru this!
Diagnosed with CD in 1979, many resections and meds
Perm Ileostomy July 1984 at Cleveland Clinic
Disease free since surgery