I have both.
Want an exercise in futility? Be employed as an editor before your OCD diagnosis. Some of my checks revolve around grammar, and words feeling "right." How can I even judge how words feel?

Took forever to get through my projects. Sometimes I can't even post stuff online because it never seems right. I get portions of songs stuck in my head...never a whole line, but part of a line.
I get violent images stuck in my head on repeat.
I used to think I was being followed by snipers, and I'd hide from helicopters because Area 51, secret aliens, I knew too much, whatever. Now, I'm scared of submarines...thankfully I encounter those much less often than helicopters. I can joke about the submarines when I'm not near one, but when I'm around one it's no laughing matter. There's actually a word for this phobia--submechanophobia. Why is this even a thing?
Previous therapist and meds doctor thought my distressing, intrusive thoughts were BP 1 and psychosis...current doctors thought it was OCD causing my psychotic-seeming symptoms.