WHERE is she pulling her hair out?
Before jumping to the conclusion that she is SMing, please let us know where the hair loss is. My first guess would be over grooming. Overgrooming most often starts above the eyes, but can occur other places. Overgrooming can have several causes: stress, illness, loneliness, pain.
SO, a vet visit is in order. If you are still treating for giardia, then there still exists the possibility that the glider has an infection. ESP. if these were rescues. So, an antibiotic might be needed. If she checks out OK with the vet, then you know that the cause is stress. So, you can begin addressing her stress level. It is not uncommon for newly rehomed gliders to become very stressed.
Mealworms, while given as a treat, are also very good for your glider's teeth. If they will not eat mealworms, you can provide safe branches for the gliders to chew on.
I am PMing you my phone number. You can call any time.