Goodness, I feel for you. I was where you were at one week ago! My HA was triggered by the death of my husbands grandpa at the end of October. I had never had anxiety before and the PCP had to put me on zoloft and 2mg of Xanax per day to calm me down. I thought I was dying-I was sweating at night I swore I had lymphoma. I then thought I had leakemia after the lymphoma was rulled out, then MS/ALS, then a brain tumor, and then I thought I had pancreatic cancer ( I am still slightly worried about that one) I am 25. My husband is a paramedic and I have driven him up a wall about my constant worry-he is still supportive though. Please keep in mind your PCP knows best, did you go to school to be the doctor or did they-so who should you listen to? Also your mind will convince you that you have something horrible going on! My mind obviously has bounced around to a million different things. I am happy to say that I quit the zoloft cold turkey and did a quick taper off the xanax, the first 5 days WERE HORRIBLE. I thought I had the flu, my anxiety was through the roof but I do feel better being off of them so I would encourage to try and get off the meds. There are other solutions, there is a great product PHARMA Gaba, my whole foods store suggested it for me and it does help a lot (they have it on Amazon if you don't have a Whole Foods kind of store around you) also TRANQUIL sleep (an all natural sleep AID has worked GREAT, you need to get you body into a deep sleep to wake up feeling more refreshed. Drink some calming tea before bed. Your ok, anxiety is an illness of its own and you need to get the strength to overcome it.