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Masturbation can be a great way to release pent up stress and other emotions.

As far as worrying about it or not, how does it affect your daily life? You said you do it compulsively, which to me means that you aren't really able to distract yourself and do something else to avoid giving in to the urge. Am I understanding right? Another thing to consider is how this is impacting you. Are you hurting yourself by masturbating too much or in a way that is harmful? Are you missing out on social, professional, or other activities to masturbate? In other words, is masturbation getting in the way of your daily life? If the answer to those questions is yes, it may be getting addictive for you and be a bit worrisome.

Whether you answered yes to those questions or not I think it's okay if you bring this up in therapy. If it's scary, you can write it down first and either read the note to your therapist or have your therapist read it. Since it feels off to you and you have so much confusion surrounding it, your therapist may have some suggestions on how to work through it and get more clarity about things. Don't be embarrassed either! They've heard it all!

I hope this helps at least a little.