Confused and Lost

I don't know who I am. I have never been on a date and I've never felt anything towards either gender. I don't have crushes but sometimes I'll think "They are quite good looking" but I never have crushes. I do think about being with people of both genders though. Men, women. Am I gay? Straight? Bisexual? Asexual? How can I find out? Is there something wrong with me? I never have that feeling that people describe when they are in love or when they like someone - that funny feeling in your stomach that lets you know.

I need some help. Should I go on dates to find out? Should I leave it and wait for the moment to come?