How long have you had this snake for?

Pink belly just means she is going into shed (unless of course, and I will assume not, it is belly burn).

Do not let your snake loose. It is very easy to loose track of them and you can risk an accident or fatality.

Part of being a "good" keeper is a being a mindful keeper, and that means knowing where your snake is at all times and protecting them from injury. This includes handling sessions. They have great muscle control, but they do not have hands... legs... etc... you get the idea. They have to compensate for your movement, and they are just not equipped for this.

Some of the saddest posts I ever read are a person letting their snake loose and someone runs into a room and steps on the snake.

Bruce