Terrible face jaw pain

I have started to and it has not helped my TN yet but has helped my flexibility and joints,
hoping it will start helping the TN.

Sorry to hear this, but can identify with your loses. The average person has no clue. I had an MVD in 2012. It helped a ton, but it has crept back. I started a different drug that has helped. You might want to ask your Neurologist. Venlafaxine. My pain after MVD is more in my teeth and ear than head. Praying for you.