why do the thoughts and feelings feel so real before my period starts

I started having intrusive thoughts about my sexuality when I got into a relationship with my ex and I wondered if it would seemingly go away but it hasn’t and I find myself ruminating about it constantly especially before or during my period. Has anyone else felt with this?

Does anyone else ever feel like they don’t feel “bad enough” to have OCD, or that they don’t feel “the right way” for it? Or like they’re just saying they have OCD as an excuse? Because i was so much better for like 3 weeks now and now im on my period and i started doubting again. So because of that im scared that i was feeling to good and that my fear is actually true.

Hey everyone, I wanted to come on here today to just share this post because I’ve been struggling with this recently. I just wanna know if this is a common thing in relationship OCD. So last Friday me and my boyfriend had a conversation that was important, and my emotions were high and I got a little emotional about something he said and we had a long talk about it, the conversation went great and afterwards everything was okay. On Saturday I was so excited to see him after work and I was overflowing with feelings of happiness and excitement. Sunday was great and we stayed on FaceTime just enjoying the day together after he went home that morning, and then came Monday. I remember getting a thought like this, “What if I’m losing feelings for him and I’m just leading him on?” And even this thought, “I don’t really feel anything towards him right now, does that mean I fell out of love with him?” And then the anxiety came, I could literally feel myself breaking out in cold sweats and I could feel the pain in my chest after these thoughts crossed my mind. But what bothers me so much about this is on Saturday and Sunday I felt so content and happy with him and I was so happy and I didn’t have any anxiety whatsoever, and then Monday came, and I had those thoughts and I feel almost numb and I can’t feel anything else except the feelings of worry and fear and my anxiety has been at a all-time high and I keep feeling this pain of guilt and hurt in my chest and I just wanted to know if anyone else has experienced the same. Because personally one thing I hate is that one day I can be so happy and energetic and then the next day I can feel numb and feel absolutely nothing towards my boyfriend. I’m not sure if this can correlate with my menstrual cycle as well, but I’ve heard that that can also make your relationship OCD worse and cause you to feel differently about your partner. Just wanting to see if anyone has dealt with the same!