Hello and welcome to Healthcare Magic. Thanks for your query.
Though sexual fantasies are fairly common among males, whenever a particular fantasy or a deviant sexual behaviour becomes predominant and takes precedance over normally accepted sexual behaviour, then it becomes a Sexual Perversion. From your description, it appears that you are having a Masochistic Sexual Perversion. Since this is causing you distress and because there is a possibility that this can affect your future married / sexual life, I think it's better to seek help for it. I would advise you to consult a psychiatrist
for a detailed psychological assessment and further management. There are treatment methods which will involve counselling
, sometimes medication, which will help you overcome this problem.
Wish you all the best.
- Dr. Jonas Sundarakumar