When I was new to owning a bp, I remember being freaked out when I saw this behavior. Shouldn't be anything wrong. Sometimes I'll use this "opportunity" to take my snake out of the cage for some handling, as long as it hasn't fed in the last 48 hours. As a matter of fact, mine was all over the place this morning, and some time out of the cage calmed him down, and he's now back in his hide, chillin'