To save us both a little time as it is getting kind of late n I'm fixing to head to bed... The going from bottom to the top then dropping to the bottom again is a habitual behavior of a lonely, under stimulated, and likely depressed little glider.
She could use a larger cage, remove any heat rock or heat lamp if you are using any If that red and white thing is her wheel it needs replaced with a glider safe wheel, if you need places to buy one I can give you some links they can only be purchased online.
And pleaseee give that baby girl some toys to get her mind stimulated. Drinking straws, an empty coolwhip container with a 2 inch hole cut in the top or side, easter eggs with some treats in them, fleece braids for her to undo.... plastic bracelets toddler toys with holes no smaller than 2 inches...
she needs a fleece sleeping pouch
She also needs a cage mate, that would benefit her the most. That is not something you can provide her immediately though so for now lets focus on getting her cage to be a fun stimulating cage for her to help with the stress she is in.