Totally normal to masturbate.
So is it effect my educations?
But i feel small headache in few minutes (10 minus ) afters sperms come out. So why is that?
Here is from another website:
"Benign coital headaches tend to occur before or during orgasm, and may persist for a period of minutes, or hang on for hours after sex. It can occur in both men and women. Benign coital or orgasmic headaches can be painful, but they present no other acute threat. They are thought to result from muscle contraction, and/or blood vessel dilation, in the head and neck during sex."