I experienced some spread to my jaw>then teeth>then finally my tongue. It was constant for about 2 months, during a period I kept being put into withdrawals since my insurance was messing with the approvals on my RXs. Eventually, they calmed down, when I got back on my correct med schedule. I had trouble eating solid food, and it hurt to talk, and I was mumbling. It felt kind of like a limb falling asleep. The same issues have come and gone since, generally to a lesser degree. I'm again off my most important med, and my jaw and teeth are getting progressively worse yet again...

My doc wanted to do a block back in the summer and my insurance denied it. Of course. We also tried to get a Ketamine Infusion scheduled to no avail. Both have helped me in the past, so you could consider these option with a knowledgeable RSD/CRPS doc.