masturbation has nothing to do with your concentration. As far as your lumbar could you
be in a bad position as you jerk off?
Masterbation does not cause any problems except for the times people become addicted to it.
I have and I am having the same issue, When I was at my teens used to masturbate nearly 7 times max per day. By twenties I started experiencing your symptoms,
eye dryness
shoulder/neck/back pain
week thigh/legs
chest pain in between the ribs
and of course big time memory loss.
Try to reduce is my advice which I know its difficult.The truth is failing to reduce will result in poor sex drive in the future, premature ejaculation, poor digestion, allergies.etc
practice Yoga/meditation.
Consult a doctor/psychologist he should prescribe antidepressants which will help you to slow down the addiction.Add more vitamin C and b complex for daily use.Eat lots of fruits like guava,watermelon & papaya
georgieboy21 I am sorry but masterbation has zero to do with digestion and allergies and I would not recommend antidepressants. But seeing a Dr, or a therapist would best suit you.