Had my first Anxiety Attack A week Ago and Haven't Come Down Since

I'm 26/m and woke up after two weeks of being sick in my girlfriends bedroom and was shaking uncontrollably, felt nauseous and had diarrhea. I went home and saw my primary care physician who saw me for about 20 seconds and prescribed me antibiotics which I've now finished. The feeling has yet to subside, even when I'm not shaking I can feel the energy pent up inside me, I can't relax at all and have only been able to sleep thanks to Tylenol PM, and even with that I wake up very early shaking again. I feel totally disconnected from the world but am making an effort to spend time with people and be outside as much as possible (I think the heat is helping me keep myself distracted). I've had close to zero appetite this entire time and have been forcing myself to eat, but even then it's only been small stuff. There's really nothing in my life to be nervous about, and the only thoughts of dread that are running through my mind are in regards to me now possibly having anxiety and it not going away (a vicious cycle I know). This is something I never really suffered from before, especially not with physical symptoms, and I was just wondering if anyone else had a similar experience. I am going to see a psychiatrist after the weekend but I guess I'm mostly looking for some advice or encouragement while I wait. Thank you.