A few years ago in meditation I found I could mentally controll the constriction and relaxation of several feet of my colon. Its incredibly relaxing to release that tension so deep in the bowels. I don't think this is normal.
Never heard of anything like that. I don't doubt your story. As long as it doesn't cause you harm, I don't see a problem with it. I wouldn't say it is abnormal, just an uncommon ability you have. Whatever floats your boat.
Care to share you secret? Cause I have to shit like a fucking Rhino in the morning, sometimes I can last until 10am, but that is only if the bacon I ate for breakfast was fully cooked.
Congratulations on developing better heath.