If you often wonder if you are gay, then there is a real possibility that you are. It is possible that you may be wondering about your own sexuality. If you find yourself talking about homosexuality often, then it is on your mind for some reason.
People usually talk about things that are on their minds. People fantasize about almost anything, but that does not mean they will actually perform the activity that they fantasize about.
Thinking about same sex experiences does necessarily not mean you are gay.