Hello @beckiw814, Welcome to Connect. I see you have already received some great information from @jenniferhunter. I have small fiber PN with only numbness for a symptom in both feet and into my ankles. I also have polymyalgia rheumatica that is currently in remission. One of the symptoms I've had in the past when it came back was waking up with pain and stinging in my left arm and hand. My primary care physician thought it might have be a pinched nerve when I told her I mostly sleep on my side and was always sleeping on my left side when I would wake up with the pain. After the PMR went into remission I stopped having trouble with it when sleeping on my left side. Mayo Clinic has some information on pinched nerves on their website:
-- https://www.mayoclinic.org/diseases-conditions/pinched-nerve/symptoms-causes/syc-20354746

@beckiw814 can you let us know if you learn anything else from your primary car doctor?

John