Few days back, While doing masturbation, I had a cough causing headche that kept on increasing. I stopped masturbation and  headache started subsiding. When I re-started masturbating, head ache again began to increase. Subsequent days, I tried masturbating again, head ache still coming. Iam 44 yrs male, Doc pls tell me what is going on?
You could be suffering from hypertension, with the hyperstimulation of masturbation causing further elevation of you blood pressure resulting in headaches. You should get your vital signs checked by your doctor, but you could start a low salt diet prior to that.