I put in a tampo now it hurts to bend over?

You probably put it in at the wrong angle/didn't put it in far enough, because if you properly put in a tampon you shouldn't be able to feel it at all. The trick to correct insertion of a tampon is to aim for your backbone. Don't put it in straight up because it'll hit your cervix - aim lower and shoot for your backbone (which seems wrong while you're doing it, but trust me, that's the right way.) It's really just a trial and error type of thing..you'll get the hang of it soon.