Ehh...

Well, if you around a girl and want to be with her, then you at least have feelings for her. If you are around a dude, who is gay or bi, and you find you have feelings for him, then you may be attracted to men. If both happens, then maybe you are bi.

Just don't do anything you're not into. If you decide to be curious with another man and you find yourself REALLY not into it, then ya know...maybe you're not gay/bi. Likewise, if you find yourself not into a woman you are with, then maybe you're not straight. I say experiment or something.

As far as your country and the issues...well, I dunno what to say. Just because you're over 30 and not married doesn't mean you're gay. Are you a virgin? Well, if you are I just suggest you see if you can get a friend to hook you up or something. With someone nice and who would understand or something. I'm not sure really how to respond, but figured I'd try since no one else did.