I say don't worry because I've been having problems with my Spider BP not eating recently. It's sooo annoying. I took his tank completely apart, re organized everything. The water bowl is closer to the heater and the light, placed tin foil over the top of my tanks and added some fake foliage (spelling?).

I also cranked the heat up on the UTH to 92. Now, last night, dropped in the rat and BAM! Dead rat. I'm lucky I have 2 snakes, on that was eating, one that wasn't. I made their homes almost the same and now I have no problems.