A few months ago, I started to have back pain, in my lower spine, and horrible knee pain
. I can still handle the back pain
cause it stops after 30 minutes of training, and returnes after it (I don't care as long as I can play), but knee pain in my left knee is horrible. Yesterday I jumped and felt as like someone is stabbing me with a knife in my knee. I couldn't stand on my left leg for 10 minutes, and after that it still hurts a bit, but I can walk nicely today.