Thanks for responding so quickly. I just spoke with my daughter, she says she saw Uday rubbing himself raw on the metal screen of his enclosure. He is about four years old, and to my knowledge, hasn't done that for a long time. His enclosure is large (2 x 2 x 4), mostly glass with some screening (fiberglass now that I have changed it). I have artificial turf as a substrate. He has a large plastic bowl for water and soaking, a plastic hide, and a large branch (mostly for decoration as he doesn't like to climb that much as I have heard most BPs don't). He has a heating pad under his hide, and a UV lamp at the other end of the enclosure. We usually give him two large mice each week, but gave him three at the suggestion of the pet store snake person. This is the first time I have ever seen him regurgitate. I will get him into the vet if necessary, I just don't want to make an unnecessary trip (money, time, exposing him to other animals, you know).