Has she shed since you got her? If not, do you know when she last shed? I doesn't seem like she is shedding to me although a pic might help, it is tough to judge off of words. It could be that she has just settled in to her new enclosure and feels comfortable. My BPs only explore when it is close to feeding day and they relax the other 4-5 days. When you took her out was she slow? I know you said she seemed a little nervous but was her tongue and movements slow?

On to the eating issue, how long has she been off food? It is probably just a fast, a lot of BPs fast this time of year, I wouldn't worry about it to much unless she starts losing serious amounts of weight. It probably isn't a husbandry issue because all your temps sound right. Also I probably wouldn't feed the Arctic Mice, they aren't very good quality. Maybe try ordering online from a rodent breeder, there are lots of good ones out there.

One last question how much does she weigh? Because at 6 months she can probably take more than a mouse. Sorry if I over whelmed you with questions, just trying to help.

Good luck!