I'm not a doctor but I do have significant experience with benzodiazapine withdrawal.  If I were you I would take a close look at xanex as being the more likely culprit.  Benzos are highly addictive and lose their effectiveness over time if you do not continuously increase the dosage (which you DON'T want to do). If you don't increase the dose they have a tendency to mimic the symptoms you started taking them for.  Benzo withdrawal is a very serious business and should be done very slowly and with medical supervision from a doctor who knows what he/she is doing. Google "Benzodiazapine withdrawal" and you will find a LOT of information. Then get the RIGHT doctor.