he shed about a month ago. i have had him for about a year now. he has ate voratiously since i got him and went off feed in january. he is very active. it may be from rubbing on the screen lid? i don't know just saw that in another thread. I am not sure becuase I don't watch him every night, but i do know he is out and about. i don't think the feed issue has anything to do with it, but just wanted to throw that in there in case it might be connected. it is chilly still here in chicago right now..i hope it is not an R.I...but the cage never gets below say 72 on the cool side.. even on the chiliest of nights. during the day, I keep it at 80/90 respecitvely,and that's what he seems to like. 75/80 at night. other than not eating, he has been a normal healthy snake. It just appears to be dry white scales...like he has been rubbing it. Just am not sure, because i have not seen him rubbing. I just saw in another thread that it is common for snakes to get that sometimes?? what is the number one or most obvious symptom of an R.I.? and how serious is it as far as being noticeable? because what appears now seems minor and is not bothering him...