My advice to you would be to read through this forum and find out as much about anxiety as you can.
Your pains are real, it is all because of the way we breath when we have anxiety, how tense our musles are and we don't even realise it, etc
next time you are sitting watching tv or reading a book take a moment to look over your body and go through your body parts - you will find that you are tense and didn't even know it.
Once you have learnt all you can about anxiety then you can realise that there are millions of people out there feeling the same as you. Then you can accept it and then you can start to let your symptoms do there worst because you know they can not hurt you - they never have and they never will.
A great book to get is "hope and help for your nerves" by claire weekes, it helped me out so much.
Also don't be scared to go on medication until you can learn to manage your anxiety yourself. We all need help sometimes and that is what the meds are fo.
Take care and contact me anytime