Roni-Ro:
I've done a completely unscientific poll of people (only talked to in person..not on-line), and have found that most UC folks underwent severe stress/anxiety prior to beginning any UC symptoms...
I had to do some deep soul searching to realize that I had gone through similar stress/anxiety prior to first developing UC....
No one can pinpoint "stress" as the cause of anything, however, the effects of stress on the body/mind, and the possible effects of bad diet due to stress (e.g., alcohol, sugar, not getting sleep) usually end up hitting people where they are weakest physically....
As far as surgery, yeah, I've had ups and downs....dealing with an ostomy is a challenge, but healingwell has made it a little easier....
hope this helps!