Emotional phenomena causes physiological change. The nerve conduction is real. But it's also harmless. You're afraid it's permanent or going to last a very long time. What would if feel like ACCEPTED the pain as real but harmless? That has been one of my mantras over the years, "Real but harmless. Feels real but it's untrue". Start a daily journal and write all your dirty, mean, angry, shameful and fearful emotions on paper. Let no one else read it. Start to drain your subconscious of all the perfectionism, anger over being responsible, and your need for people to like you because you're so "put together" and achieving. Let, it, all, go!
You've got this and it takes the time it takes. Follow Nicole Sach's podcast. It's excellent!