I'd question if a sharp burning pain is actually impingement pain.

Throughout the course of my journey, I've had two types of pain:

1) TOS Pain: Burning pain on the scap, under armpit, in tricep area.
2) Shoulder Impingement Pain: More of an "ouch" when I make certain movements.

I'm pretty sure that my impingement situation contributed towards my TOS. I was overtrained and tight in all the wrong places This contributed towards a forward posture and a classic case of "upper cross syndrome." This is why I originally thought I had a shoulder injury that required surgery. I had pain if I did pressing of any kind and forward dumbell raises.

Correcting the impingement situation has helped my TOS. I've focused on the following exercises:

* External rotation
* Scapular depression movements
* Rows
* Pec minor stretching

Of course, none of this helped my TOS. I went over a year trying to correct shoulder problem and did nothing for my neck. It wasn't until I started stretching the scalenes, doing boytos foam roller/chest breathing, chin tucks, and corner stretches did my TOS start really improving as well.

KY