Has anyone else ever experienced benzo (Xanax) withdrawal?

After being sexually assaulted by a stranger on the street this summer, I started taking more Xanax to sleep without realizing how much I was overdoing it. Gotta wait a couple of weeks for a refill and am just trying to wait it out. However, the side-effects are awful!

Intermittent sobbing, anxiety, a crushing feeling of failure/dread, and last night—even auditory hallucinations! I’m well-grounded enough to understand that this will pass and that it’s a result of mild withdrawal but it’s still an awful feeling. Has anyone else ever had a Xanax withdrawal and felt this way?