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You are a known case of GAD and are on Paroxetine
CR 12.5 mg and it is a right dose and right drug for GAD. You masturbate about 3 times a week, and to delay the ejeculation you try edging. Edging is not harmful if it is done without any violent methods. The light headedness or dizziness
that you suffer after 2-3 hours is only due to normal fatigue
on body while watching porn and doing masturbation
. Watching porn or any erotic content need concentration and it also make brain tired. So there is no need to worry you are absolutely normal. Try to shorten your time in watching porn because excessive pornographic material is harmful to health.