Please relax. I don’t think it is either HOCD (Homosexual Obsessive Compulsive Disorder) or denial. I think it is the natural questioning that is normal and appropriate for a 16-year-old to have. It is normal to think about alternative ways to express your sexuality. It is usual for a teen to be questioning herself. It is normal to think about “what if” I’m this and “what if” I’m that. These thoughts are driven by hormones and by both your age and this point in time in our culture where everything about sexuality is being questioned and talked about. Over the next few years, it will become obvious to you who you want to be with. Let time just take its course.
I wish you well.