That sounds like completely normal behavior. But what do you mean that you've seen her "topple over"??? Did she clumsily fall off a branch? If so, that's normal too. But did you mean that you saw her flop around momentarily while on the ground? If that's the case, that's not so normal.
Pay close attention to how she behaves when she eats tomorrow. She may be a bit clumsy if she's young, but she should be fairly accurate in her strike, constrict securely, and swallow confidently.
But really, everything does seem fine. Boas DO do weird things sometimes.![]()