Can ocd make you doubt everything?

I’m struggling with something I’m afraid to even admit out loud. I’ve been in a long-term relationship with someone I love deeply. He’s kind, safe, and emotionally close to me — and we’ve built a life together. But I keep obsessing over the fact that I don’t feel much sexual attraction anymore. Or maybe… I never truly did? At the beginning, I felt butterflies, excitement, connection — and I assumed that meant I was also attracted to him physically. But now, after reading so much and reflecting more deeply, I’m starting to wonder if I ever truly felt sexual desire in the way I was “supposed to.” Maybe my feelings were more about emotional longing, comfort, and romantic closeness — but not sexual chemistry. And now I don’t know what that means. OCD makes it so much worse. It constantly tells me: – “If you really loved him, you’d want him.” – “You’re leading him on.” – “What if you’re lying to yourself?” – “If you try to fix this and fail, you’ll have to leave.” I feel stuck between wanting to fight for this relationship — and being terrified that trying will just prove it’s hopeless. Has anyone experienced something like this? Can OCD really make you question something so deeply personal? And how do you move forward when even trying feels terrifying? Any thoughts or support would mean the world right now.

I'll start by saying, I have not been clinically diagnosed, as I do not have the funds to see therapists or psychiatrists in my current situation. Once I'm in a better spot, I very much intend to. That to say; after months and months of having issues with anxiety, specifically health related, my partner was the one that mentioned OCD. I did have some somewhat OCD related behaviors in my youth, though those likely could be explained by potentially undiagnosed ASD (as my mother is on the spectrum as well as a sibling, both diagnosed.) But I never considered OCD taking form in a health sense. I posted earlier about how I've had 4 days of pretty minimal anxiety and intrusive thoughts, and it has led me to doubt the OCD label I've been working at treating? I don't want to be the person that identifies themselves with a disorder they don't have, which is why I hesitate to self diagnose with OCD or ASD or anything else. At the same time, I've read that a lot of even clinically diagnosed people with OCD doubt their diagnosis. It makes me wonder if I will always have this doubt, and if that means it is worth it or not to get tested? I know that if I do, they can actually do ERP (whereas I've been self taught and self guided so far) so that would be worth it...

Why does ocd make you feel uncertain about everything. Even the things you knew were 100% certain before. Its so bizarre. All the subtypes like Rocd, Pocd, Hocd you should be 100% certain about these things but ocd makes you feel like you dont know. I sit here know saying in my head I DONT KNOW. its so hard and confusing. I just want to know who I am. Am I a good person like I thought I was and have been my whole life or am I someone else. I just dont know. Its awful