real feeling or?

Does anyone have any advice for how to know the difference between ocd and real feelings/thoughts? Sometimes an intrusive thought will come in and I immediately know it’s ridiculous and I can just leave it alone and it won’t bother me but other times I really really don’t know. It’s when ocd hijacks and twists my real feelings and thoughts and tries to manipulate me into believing they’re something they’re not or something that doesn’t align with my true morals or intentions. But since it’s twisting and mixing with real feelings I get so confused and scared. Everything gets jumbled and I feel like I can’t trust myself or my own mind. Yet other times and other topics I can laugh off and push away just fine. Make it make sense. And then I start to think well maybe I don’t have ocd at all and I’m just in denial because I don’t want to accept that these scary/concerning things are true about myself. Or maybe that’s just the ocd talking.

So I identify as a lesbian and I am in a committed relationship with a wonderful girl. But i’m stressing that I have crushes on boys I go to school with. I get anxious around them, which I think I mistake for excitement. I obsess over it in my head which confuses me a lot. Idk I also never think about them sexually or romantically but I think about them often which is scaring me. Any advice?

Is ocd supposed to feel like a genuine belief ? I see or hear some people saying things like « I know it’s not true but …. » while I personally don’t « know that it’s not true » I feels genuinely real and I even find evidence for it