Hi everyone,
the mind is a very powerful thing, and believe it or not, it is the reason behind most of our physical pain. The mind likes to repress emotions it does not want us to experience. Repression of such emotions can eventually cause us physical pain. The brain controls how much oxygen each cell receives along with many other things. For some reason, repressed emotions of anger, anxiety, etc. Causes certain muscles to be deprived of oxygen in small amounts. This does not damage the muscle, but can cause severe pain. Please read the book, healing back pain, by Dr. Sarno. It helped me tremendously.
An avid golfer who use to suffer from back pain and pain in my left side