Cindy
I believe your problem may be psychosomatic, especially as it seems to be related to the fissures. I suggest you ask your surgeon if this is possible and get a referral for a consult. This does not mean you are mentally ill but some type of pain avoidance is not unusual with fissures. Even tho you have fixed the original problem, in your mind there may be a connection between bowel movements and pain. This would seem especially likely since you began having the incontinence duringf sleep when the psychi would be less alert and worried about pain. Print this out and show it to your doctor. Best wishes, CC