Is it normal that i'm not sure what my label is?

I was raised to be very open minded and excepting.i try not to judge people. I always considered myself straight because it was an easy answer and I didn't care to label myself although I don't find offence being called gay.I'm a go with the flow kind of person. When I hit puberty I noticed I became a bit more aware of males and females, although I didn't experiment with any girls for a while. After high school I met a transgender male and found the person to be very attractive. Later on, while dorming my roommates took it upon themselves to find a label for me, they came up with pansexual. I find that genitals mean little to me, actually exterior means little to me, what I fall for and find most attractive is a persons heart. I'm not sure what my label is.