What are your sx?
Yoga has good and bad in it for TOS. I did and still do some Yoga poses/stretches but I know which are okay for me and which are not. Yoga actually helped me start to find stretches and remedies that provided relief. The PT work incorporated many Yoga stretches/poses without even knowing that I do Yoga. Again, listen to your body and IT will tell you what IS or IS NOT good for it. For me OPENING the chest was okay...but anything that required shoulder to bear a load was not good...also anything that would increase the compression was not good...so for example eagle pose is a definite no-no for me. Down Dog requires loading the shoulder...a no-no.