@concernsinphoenix Hello and I wanted to give you a warm welcome to Connect. I think a neurologist is the right specialist for you to see right now. I have had the pain you describe near the collar bone, neck, shoulder, and arm pain. My symptoms are from thoracic outlet syndrome, and a cervical spine issue. I had a whiplash many years ago, and eventually a ruptured disc that started compressing my spinal cord. I was already in physical therapy for the TOS at the time I started having spine symptoms. I hope your neurologist will send you for a cervical MRI and test you for TOS.

I had spine surgery which helped a lot, but the TOS remained. That is a long term physical therapy treatment and my PT also does myofascial release which does help a lot. A lot of doctors do not understand TOS and miss it. If you are near the Mayo Clinic in Phoenix, that would be a good place for a TOS diagnosis because this is something that Mayo can diagnose and treat. There is a compression point under the collar bone and near the arm pit that a can be painful spots. If you do also have a cervical spine issues, Mayo is a great place to be seen for that as well if it is in your insurance network. Nerve compressions can cause the tremors. TOS also restricts blood flow to the arms and head.

Here are some links to information.
https://www.mayoclinic.org/diseases-conditions/thoracic-outlet-syndrome/symptoms-causes/syc-20353988
https://mskneurology.com/how-truly-treat-thoracic-outlet-syndrome/
Here is our Myofascial Release discussion:
https://connect.mayoclinic.org/discussion/myofascial-release-therapy-mfr-for-treating-compression-and-pain/
Have you heard about Myofascial Release therapy before?