That does sound odd... Is she eating and pooping normally? Have you checked for mites? (Trying to soak can also be a sign of mites, as BPs typically don't soak very much).
What are you waiting to hear back from the vet on?

The tub is going to be easier to keep at a consistent heat and humidity than the tank was, but it would probably be good to avoid changing much else in her habitat unless you absolutely have to (change can stress them). Also having the enclosure in a low-traffic area can help reduce stress.

Can you post either a picture or complete details about her setup? Bedding, hides, water dish, ect.

What you're describing sounds like pretty general stress behavior, so it could be caused by anything. The more info about her setup and habits we have, the easier it'll be to pinpoint what's causing it.