Update and Questions (long and rambly)

He can develop fissures and can get very sick if bowel movement issues. I'd have a full physical so you have a baseline. He may have had white flour foods and junk food and not a lot of water in the past....or it could be something more worrisome. I've heard of some really bad cases. Also, ask him where he normally poops. Did he wear a diaper to bed before? Yes, bumping into other kids is extremely normal! I never understood the "terrible two's" adage. Three year old boys are the ones who kept ME on my toes! You'll have to repeat yourself a ton with three year old boys, but don't worry...they eventually get it!