((((((((((((((((GG)))))))))))))))))

Its like your talking about me. When I first started having my panic attacks at age 19, the sore, clenching throat symptom was very horrible for me. It seemed that it went on for weeks. Seriously weeks. I couldnt eat at all. I was always afraid that either the food would get stuck or I would throw it up. I tried to mostly stick to slim fast drinks and soda's. That was then. This is now. I was taking Xanax at one point back in January-February but they stopped helping after a while. The Dr had me on .5 mgs. At one point he told me to take 2 whole tablets. Well, since I have a fear of meds, there was no way I was taking more. Maybe your Doc can prescribe something a little stronger. Those Xanax dont last too long.
Back in December, when thing got really bad for me, I could not sleep at night at all. I would lie awake all night with my mind racing a million miles a minute. I told my T once that my head felt like I was in a busy Lunch room and I could hear people talking. Actual conversations in my head which freaked me out even further cause I kept thinking I was hearing voices and thought I had more then just anxiety. Pdoc told me this is over-stimulation. I still get it sometimes but not as bad. My meds have helped with that. Anyway, point of the story, I would sleep during the day because that was the time of day I felt most safe to sleep and I would be awake all night long. After a while, and after the meds kicked in I eventually got back on track with the normal sleep pattern.
So relax a little bit. Know that your not alone. I would call the Dr though and see if they could give you something stronger. You'll make it through this. It's a slow process but I'll happen. Dont forget, you always have us to turn too.

Take Care.