It's not unhealthy for a snake to be active. Unless I just fed my GTP, ETB, BRB, Dum, and Col Boa move around almost every night. My Kings and Hoggies will be moving during most days. I even caught my Col Boa moving around during the day twice last week. You know what I did about it? Nothing. The numbers are good so I have nothing to worry about. I knew she was getting hungry and just remedied that tonight. Now she'll be still for a couple days having ate a XXL rat, but those others will probably be moving again tomorrow night or the night after. As long as my snakes are holding weight, eating, and shedding I don't worry about what they do.