What do you mean when you say “internal vibrations?” Do you mean like tremors?
Sometimes when I’m driving and stopped at a red light, I feel a tremor on my neck. It lasts a few seconds and is gone. It started about six months ago with me. I have peripheral neuropathy in both legs, a bad knee replacement in my right knee and a bone on bone left knee. Always in pain. I take gabapentin but what has really helped me is a recommendation by my dentist to get my doctor to prescribe duloxitine for me. It was originally marketed as an anti depressant but they found it helps nerve pain. And it helps me. The only thing that helped my anxiety was Xanax which was in the past and I’m not taking it anymore. I wish you all the best in finding relief. They don’t have answers but they do try to help, it just isn’t always the best thing for us.