Hi, I am 27 years and every 2 weeks or 3 weeks feel like to have masturbation. I do 2-3 times then, and suddenly gain weight by 3-4 kgs, which reduces simultaneously as days passes and feel strength. I am not sure is this the symptoms of that, and my hair becomes grey too. I am smoker and smoke 4-5 a day. So, please suggest how to come out of this and health condition to get check up. I am currently 105 kgs. I have to reduce it soon.. please do suggest. Thank you...