@kensie123 Welcome to Connect. I see you've been engaging with other members. What I might suggest is to also ask about thoracic outlet syndrome. It does cause numbness and tingling in fingers, pain and weakness in arms and pain in deltoid and is most often missed or misdiagnosed. Surgery that you've had would increase inflammation and could make TOS worse for awhile (if you have it). I have TOS and am also a spine surgery patient. I had a fusion at C5/C6 with an incision on the front of my neck. My TOS did get worse as I was healing from this surgery with increased symptoms. My PT did myofascial release to work on loosening scar tissue and treat the TOS.
https://www.mayoclinic.org/diseases-conditions/thoracic-outlet-syndrome/symptoms-causes/syc-20353988
Here is our discussion on Myofascial Release:

Neuropathy - "Myofascial Release Therapy (MFR) for treating compression and pain"
https://connect.mayoclinic.org/discussion/myofascial-release-therapy-mfr-for-treating-compression-and-pain/