Help me!!!!!!! Please mental health please!?

I went to hospital they said i have aniexty and ocd disorder and now i keep wondering if everybody around me is real and well i think everybodys acting and there not really real its like the Truman show and i cant stop thinking of it i noticed the moment i got worried about something else it went away but then i saw something that triggered that thought and i got scared again is it my OCD OR SCHIZPHRENIA PLEASE IM AM VERY SCARED I DONT HEAR VOICES OR SEE THINGS PEOPLE DONT SEE ITS JUST THAT THOUGHT AND IT MAKES ME WONDER AND SCARED i use to get these thoughts they would last an hour then i would forget them am i crazy or is just my ocd not letting forget these thoughts and scaring me