Pain in testicles. Reproductive system?.

Sir/Mam...actually I am having pain in my testicles whenever I ejauculate either due to a night fall or through masturbation. I continuously feel as if someone is squeezing my testicles. Along with this there is an another problem with me. Whenever I watch a  movie on TV and if suddenly some erotic scene is shown up my penis start oozing out a colourless sticky watery fluid without erection...n sometimes it keep on oozing anywhere even I don't think r try to imagine any kind sexual thing. None of these things happen to my any friend. Their sexual health is normal...and while oozing I also feel pain in my testicles at the same time, as if someone is squeezing them. Its really painfull sometimes. And I think its killing me inside because I am not gaining weight from last 4 years. From last 4 my weight is between 59-60 kgs which is not normal and I know it. Is there is something wrong with me r my reproductive system???. Please suggest..!!!