Nina,
Just read your symptoms list. I'm so sorry for what you are going through. It's especially terrifying when you think you're alone and no one else could understand. But that's where this forum is a life-saver! You're not alone--we're all here!
I have had some of the same symptoms as you have described. The panic, unexplained anxiety, palpitaions and so on. I also have inside tremors which used to scare the life out of me until I found out what was causing them. I am also very light sensitive and my ears are plugged and at night or when it's very quiet, there is a loud ringing or buzzing in them. I have had the ear thing for 10 years now.
Anyway, I just wanted to encourage you to hang in there and keep faith for the "good days" that are going to come for all of us.
Be kind to yourself.
Chelan