Dear Welcome to HCM We understand your concerns I went through your details. There is nothing to worry. Production of sperm and semen is an automatic process within body. Semen is produced whenever you are sexually aroused. Produced semen is stored inside your body. Now that semen is a waste product. Body needs to throw it out. The stored semen goes out when you masturbate or engage in sexual intercourse. Otherwise, body finds its own ways to throw the waste semen out. The most common ways are through urine or through nocturnal emission. The process is normal, natural and involuntary. You cannot control it and there is no health issue due to that. Don;t worry or be anxious. If you require more of my help in this aspect, please use this URL. http://goo.gl/aYW2pR. Make sure that you include every minute details possible. Hope this answers your query. Available for further clarifications. Good luck. Take care.