I'll admit that I myself have been struggling with my faith lately.
I was raised Catholic, and now consider myself a non-denominationalist Christian. I'm also very liberal in my belief in The Bible. I interpret most of the stories as metaphorical rather than literal (I believe in evolution and support gay marriage), and I do not believe that only Christians gain entry into Heaven.
Up until a few months ago, I was verys ecure with my newfound beliefs.
Now, I have a friend. He's Protestant, and he's extremely conservative in his beliefs. He interprets everything literal, and spends his days endlessly researching Christian websites. He has little tolerance for my liberal beliefs and was constantly sending e-mails with links to evidence trying to say what I believed was wrong and that the world was going to end.
This all made me feel very uncomfortable, and after some time I told him to stop. He stopped sending me links, but he stilll brought it up all the time in school. He mentioned that I should not listen to rock and roll as much as I do, nor should I feel an attraction towards a beautiful woman, things I had done in the past that never seemed to have any affect on my relationship with God.
Because of this, I now have to question every single thing I do because I'm deathly afraid of going to Hell. I haven't been able to listen to Led Zeppelin or Black Sabbath because of their Satanic links (again, something I always did in the past that never seemed to bother me), and even when I look at Hayden Panettiere or any woman I find attractive, I alway feel uncomfortable.
I now feel my relationship is based out of fear then love (though I do love God with all my heart), and it has nothing to do with God wanting me to fear him, but my friend trying to make me fear God. I find myself now reading The Bible out of fear, and having to forgiveness for things I never felt uncomfortable doing before, and it's really having an affect on me.