As someone with nerve issues too, and with few answers, I just want to say I know how you feel. It can be really difficult to feel your being taken seriously by medical experts at times, and when you have no answers its easy to start obsessively looking online for answers yourself and getting freaked out by all the terrible conditions that exist.
But its worth knowing that while yes, some nerve issues can be caused by scary conditions, they can also often be caused by a lot of common things too. And even if you had a serious condition, there are ways to deal with those too, it doesnt mean your life is over. Just try to take it one step at a time.
Personally I've asked the doctor and specialists to rule out any life-threatening conditions, and I check in at the hospital emergency department if something changes or gets worse to rule out anything serious. That way even when my nerves are playing up and I'm getting pain, tremors, pins-and-needles, or numbness I know at least its not going to do any serious harm and makes me feel a little less anxious.
I'd also advise to talk to the doctor about how to manage these symptoms in the meantime. I cant speak for what will help you, but I find cold-packs/heat-packs, massage, stretches, light exercise (like a short walk) and rest help reduce my nerve problems, as well as taking any medications the doctor advises.
And finally you could try finding some health groups online that have people with chronic health conditions or nerve problems. Maybe you don't know whats going on with you, but you can still interact with others going through similar things. I personally find stress-relief in some of the memes/jokes people post, for example, someone posted a meme on a site I'm on saying that their hand tremors make them randomly throw things across the room and they called it "reverse telekinesis." I thought that was funny. People often post tips and vent things that might be helpful or relatable, and well, it can really help ease the anxiety when you see many others living with it and still managing.
Still I wish you luck in coping in the meantime and I hope you find answers, nerve issues can be tough.
