Dear, Welcome to HCM We understand your concerns I went through your details. You are masturbating from the age of 12. That is from your puberty period. I do not know your present age. In any case, in the initial stages, masturbation twice a day is OK. But as age progresses, it should be reduced to once per day and then further reduced to thrice or four days a week. This is to keep your physical vigor intact, because masturbation spends energy. Masturbation just spends energy, no other medical problems. If you masturbate frequently, your energy level will be low and you will be tired. Naturally you will be depressed and therefore anxious. But I can assure you, the symptoms you mentioned here (like weakened eye sight, swollen cavity etc) are not due to your masturbation. I suggest you to consult a physician. If you require more of my help in this aspect, please use this URL. http://goo.gl/aYW2pR. Make sure that you include every minute detail possible. Hope this answers your query. Further clarifications are welcome. Good luck. Take care.