I totally agree with dr del. Get Provent-a-Mite. It is the #1 best thing for mites hands down. Mites could be causing her neurological symptoms. Snakes that are infested can become anemic from blood loss (no kidding!) and anemia will cause weakness. I'm not saying this is definitely what's causing her problems, but it really could be.
You can get PAM directly from the manufacturer, Pro-Products. It isn't too expensive and well worth having it on-hand.