I have an appointment Monday for adipex because I m 25 and almost 200 lbs. I was told to fast the night and morning before the test so that I could have some tests run. What exact tests are they doing? And also will they drug test me? I attended a funeral recently and a family member gave me a Xanax to help me get through it. It s been almost 2 weeks but I ve heard they can stay in your system for months. Should I be worried?