question: i am 27 year old, and i am man, and have spondylilosys in L3 and slips disk in L2 and L4, and my most bad habit is masturbation, i do masturbation in 10 to till now, when i masturbated and after my back is so painfull, and glute and hamstring muscle is stiff, what is it relation, and i want to stop this kind of dirty happen, please help.