Obsessions with change of interests

Growing up I loved watching movies and reading. I felt I could escape in both and immerse myself in these worlds. Now I find myself just wanting to read and showing little interest in watching movies. My obsession is that something is wrong with me for losing interest in something I loved even though I know that values and interests can change. I also get obsessed with buying certain editions of books that I want to collect and like for books in each series to match covers. I’m not sure what kind of OCD this would be. I feel crazy for these small obsessions.