My BP did the same thing she cut down alot. I posted a fourm about her doing it at another web site and they told me that she could be stressed like
rabernet said or your snakes temps are not right.
On my hot side I try to keep in in the low 90's and the cool side I keep it around the mid 80's. Humidity is about 60-65. My girl is in the process of shedding right now so she is not out very much she is going threw the 1st stage of the process.
Good Luck with you and your new BP, they are wonderful snakes and very addicting you will wanna get more. I've had my little one for about 2 months now and I want another one.