This was me when Mine started. What I did was finally admit I needed to go to the dr. I got prescribed Xanax for the panic and then lexapro. Now every reacts differently but it sounds to me that this panic is excruciatingly intense and Xanax it Klonipin would help for those times. I know the feeling and that's the exact reason these meds exist. Then maybe you can find a daily med and learn some coping skills to decrease the panic. You've described all my symptoms. It was rough. I'm 32 but at the time I was 21 and shaking crying restlessness gagging tense. I found a psychiatrist. First I went to my primary dr and he was a prick told me he wouldn't help w mental and had no recommendation or direction for me. (Never went back to him). Try and find yourself a psychiatrist. It can get better I promise you. I've been there.