Its not drastically abnormal, but if it continues to do this, and stops eating I would suggest getting some fecal samples run. Do you have a scale you can mass the frog with? most treefrogs are large enough that a scale will be a useful tool in measuring overall activity/health. Its difficult to judge the size since you see it every day, but a scale is an objective tool that will help you see the long term health.

What substrate are you using?

Also, if the warm pediyalite soaks are working I would continue doing those, but if she becomes worse despite these soaks you will need to talk to a vet.
-----
A room of herps.
www.freewebs.com/kapoktree