thank you for the reply. i do have some arthritis in my cervical spine and probably some discs that are out of whack as well.
Hello,
A detailed history, clinical examination and work up may be necessary for appropriate diagnosis and treatment. You could be suffering from either of these two things .High gastric acidity can tend to collect in the upper part of the stomach. Any herniated disc or any local lesion of the armpit can cause altered sensation in the armpit. Treatment will depend on the underlying cause. Good luck and regards!.