Brief Answer:
It is normal physiology of body

Detailed Answer:
Hi, thanks for writing through HCM.

I have read your query and understood that you have problem of nightfall which means involuntary leakage of sperms during sleep, while urinating or passing stool or whenever penis gets erection.

Our body produces sperms and semen continuously. While storage has a limited capacity, so when a person does not remove semen by masturbation or sex, the semen gets accumulated and gradually all the storage space gets occupied. After that whatever semen is produced, finds it's way out on its own.

If a person masturbates or perform sex then there is no question of accumulation of semen and the problem of nightfall gets resolved on itself.

So, you do not have any problem with your health. Whatever health issues you are experiencing are because of psychological worries regarding leakage of semen.

If you are not sexually active or masturbating then I would advise you to get involved in some activities like masturbation. Masturbation should not be excessive, 2 to 3 times in a week is enough. Once your semen gets out regularly, your problem of nightfall will be resolved.

Hope I have answered your query. If you have any further query then I shall be happy to help.
Wish you good health.

---