Strange Behaviour...Comments? Opinions?

[rattekonigin]

Hello all,
My large (4ft+; CB01) corn has been acting strangely the past month or so...she (and I use the term "she" very lightly as I am not 100% sure of the sex, sold to me as a female) has been trucking around her enclosure almost non-stop ALL day, and well into the evening...she seems to be trying very hard to find a way out, as she spends the majority of her time trying to squeeze her nose through the ventilation holes...she's also shown a reduced appetite, she still feeds but has begun to refuse the odd meal and will take fewer prey items than she would normally (she will usually down 2-3 "adult-mouse-sized" F/T rat pups, but now she'll only take one and leave any others sitting around)

I'm kind of perplexed by this, seemingly, sudden change in her behaviour...I don't recall her ever acting like this before...Could it be a mating thing?
I'm not worried at all, she's in very good shape physically (probably even a little fat)...it's just curious...I'd like to hear other people's takes on the situation.

Thanks!