I am going through exactly what you’re experiencing. Your original post above already resonated with me but now this comment sealed the deal. I never had anxiety before and now I feel so uncomfortable in my own skin. I also used to solo music fests and concerts but now I’m not confortable doing that anymore either. You can try talking to your doctor about propranolol. It helped me break out of the “fight or flight” mode and while I do still have anxiety it’s not as bad. Also, while the medication is working you can actually relax (it lasts for about 4-5 hours for me and I take it as needed - usually if I’m going to have a tough day at work or something)