Sorry to hear the side effects are tough. If I need to get a message to my Pdoc I can call and talk to her nurse who usually calls me back with the Drs. response or advice.
I do not remember if you ever posted what dose of Lexapro you are taking. Perhaps you could slow down your dose as I have heard of people that even start at 2.5 mg and then increase to 5 mg and on up as their body tolerates the medication. I think it would be very prudent of you to go slow. These drugs effect everyone
differently.
As for the Xanax can you break it down to a lower dose and try it around 10 PM to help you get sleepy and fall asleep easily.
You might also try taking a Calcium, Magnesium, Zinc combo tablet as I have read that it helps with sleep - as long as you are not allergic to any of these ingredients.
Hope you have sweet dreams tonight and do let us hear what your Dr. has recommended.
Kindly,
Kitt