"Has anyone or you figured out if more vascular or nerve, or both?
Do you know or have any ideas on how you acquired TOS.
Sometimes if we know how you might have gotten it we can better suggest things."


So, symptom wise, my PT and I believe it is both vascular and nerve involvement. Blue nail beds and temperature differentiation when recreating symptoms during my sessions has led us to believe there is definitely some circulatory involvement.
As far as knowing how I got it, I really don't know for sure. I had a lower back injury (bonus, I also have degenerative disc disease)in September involving an annular tear that was extremely painful for several months before I got an epidural steroid injection. There is a thought that because I was in so much unresolved pain that I did a lot of shallow breathing for a long time which bulked up my scalenes. My PT says I have the scalenes of a football player
I've seen "pregnancy" listed randomly as a possible precursor to this and I had 2 pregnancies in 2.5 years. I really don't know. Just lucky I guess...