i am 20 year old guy but i suffering some from problems like some times my left gonad become pain and also i will outed sperm very early within 2 to 3 minutes,,, before 6 years i musterbated through my hand now i cant control my erection and also when i lifting weight my hand are shaking and my legs also shaking , last month i met nuerologist and he gave beta cap tr 40 tablets, and also he told to me t3 t4 tsh blood test but everything i normal, but my hand are vibrating while lifing weight and legs also,,,,,, also i musterbated sperm very early during sex,,,,,,,,, please suggest to me sir,,,, how can i cure this problem,,,,