Your good bro, your still a long way off from panic mode, there could be a lot of things that caused this with a BP most likely its either last weeks meal was bigger then normal and hes just not interested yet. Hes getting ready for a shed or it could be that since you changed up his environment, he might just need some time to get used to it and hes pitching a little fit, but if thats the cause he should come around soon. Just keep his temps and humid. right. Also I wouldn't keep throwing the mouse at him .. take it away for a couple days, let everything calm down then try again. Thats what i would do at least