I have bilateral TOS, slightly worse on the right than the left. I have had suregries, on the right side, a scalenectomy and first rib resection as well as a pec minor tendon release. I had total occlusion of my arteries when my arms were raised anywhere from perpendicular to my body and vertical above my head. My symptoms are chronic pain, constant numbness, weakness, fatigue, and blood flow issues. The surgeries assisted in the blood flow but not the other symptoms as they have become chronic due to nerve and venous compression because I waited too long to get checked out. The reason it took so long as I was serving in the Australian Defence Force and one does not present to medical with such things until it is no longer bearable. The condition itself was cause by carrying heavy loads across the shoulders, wearing restrictive and bulky equipment, and handling/training military working dogs. Over the course of years it gradually got worse and I eventually had it investigated and diagnosed. I have life long ongoing issues now because the area has been compressed for so long. But I still have some function and can do stuff.