@lb45345 Cold tingly hands can be a symptom of thoracic outlet syndrome which I have been diagnosed with. It's also a compression syndrome and has multiple places that can affect the brachial plexus with the nerves and vessels that service the arm. This happens where the nerves pass between the scalene muscles at the side of the neck and also under the pec minor muscle near the arm pit. If you release that, it helps, also stretches to the front of the chest. There may be compression anywhere as nerves and vessels pass between the collar bone and rib cage. The SCM muscles are opposed by muscles on the neck that connect to the scapulae, and you may get pain there too. I also get pain to the jaw/ ear area, and I have an imbalance of tightness between the sides of my neck. It can start turning my cervical vertebrae independently, and for me, it affects my physical breathing because one side of the chest gets too tight. If I get this released, I can get the chest wall to move better on that side. I am also a spine surgery patient with a C5/C6 fusion.