anxiety attack with acid reflux

I JUST now went through a horrible anxiety attack, took meds and now coming down from it, shaking, change in breathing, feeling of passing out, out of control. My body shakes and i Pace. We just had a horrible storm go through, not normally afarid of storms, so I can not figure out what is causing these. My heart rates goes up enormously. I have ended up in the ER a dozen time and they give me a shot to calm me down, one time I got sobad, they thought I was having a drug problem, i was shaking uncontrolable. After these attacks are over, my chest burns and i have so much coming back up in my throat. I take xanax when needed. It do not end up in the er anymore, because I stay calm and quote scripture over myself. I did find a doctor who gave me a natural substance to take for several months, I went 3 months with NO heartburn or pain or sore throats, ect. .... i ran out of it and within a week , it started back. i AM CALLING him tomorrow to get more. It is suppose to heal the esophogus and lining. I have tried so many things, they don't work long term. Does anyone experience these symptoms. I t is the scariest thing I have gone through, I am not normally afraid of storms at all, but something is triggering this. When I do get so upset and my breathing changes, i get a funny sensation in the back of my neck. Thank you for anyone who will listen. This has been going on for about 8 years. sorry if i am not making alot of sense, my meds are kicking in. tHANK GOD!