Here's my theory on xanex. People tend to think that xanex is a miracle worker. It does relax you and often you get the "anxiety" from wondering "omg, will I be able to relax or go to sleep?" You body will get used to it in it's system and once that's gone your body is going to react to NOT having it so yes you will feel a bit different. So you have to let that tension and/or anxiety pass. I'm almost posistive it's out of your system within 24 hours.
If you have an addictive nature, you can become addicted to just about anything. Trust your Dr. You will be fine. I never had a problem with addiction to benzos..after many many years. I was addicted to cigarettes for 10 years. I still beat that..so I dont worry about addiction.