OK, and I'm not trying to be accusatory. These are just questions that run through my own mind so I'm simply curious to see how people operating under a faith system like Christianity deal with it in their minds. You have your faith and you have to remain strong in it but there are things that have to challenge that faith and I'm interested in hearing how people deal with the conflict.
I have had doubts and my faith has been tested. When tested or doubtful I read the Bible, pray, talk to others in my church and find peace. I'm not sure how others deal with those thoughts but that's how I deal with it. I think with any belief structure even those without a religious faith they have doubts and are tested in their belief systems. It all comes down to the strength of your faith/belief and your support system. That is why I believe it is necessary for people of faith to surround themselves with others of the same faith. It doesn't necessarily need to be a church but even a small group of friends.
Matthew 18:20 "For where two or three gather in my name, there am I with them."
I belong to a church and I attend every Sunday. But that church works for me, before I found that church it was just me, my wife and neighbor couple doing Bible study weekly.
I've never considered another faith and, like some have mentioned, I have tried to learn what their beliefs are to try and better understand them.