Hi lately I have been experiencing some stiffness and pain maybe from over masturbating I think. I started masturbating and watching porn a lot starting a few years ago and I notice the more I do it,I felt like I was getting weaker mentally and physically. I would get up the next morning with stiffness and pain in neck and chest, low back and spine pain, and my vision would be really blurry and a headache that would last for some days to a week. Is this all coming from masturbating too much? Do I need to stop masturbating for a while?