Kickboxing

As part of my recovery, I have returned to kickboxing. I think participating in the sport highlights why I am suffering from TMS and have no 'actual' injuries. While training I am smashing the pads and bag without any pain, it doesn't exist during my training. Surely this type of pressure on my joints would make it worse not better right? Yet when I'm sitting in bed, thinking about these problems more and more that is when they are at there worst, not when I am taking part in a contact sport.