hi-

im not sure if im going to be very helpful with this. Im afraid i might end up confusing you more. But i'll try my best

your symptoms do sound similar to that of OCD. you say you dont have compulsions. But do you feel compelled to think about these things, or is it just something you cant control, and you dont actually feel like you have to think about them?

It could be some other kind of anxiety disorder. It seems like maybe you worry a lot about lots of things, so maybe that's whats causing you think and obsess about them so much.

I have schizophrenia, and one common symtom is intrusive thoughts/uncontrollable thoughts, etc.
Schizophrenia is termed as a psychotic and thought disorder.
Anyways, i doubt that you have schizophrenia, unless you have other symptoms of it that would quallify (delusions,hallucinations,disorganized behavior or speech, or negative symptoms, etc.) I dont mean to scare you or anything by suggesting this. Actually, im not really suggesting it, because it doesnt sound like you would have schiz. Your chances of having it are very small, too. Sounds more like you have OCD or another anxiety disorder.

good luck

-Becka