even though you got banned (which is weird....), i'm gonna basically give my unwanted 2 cents.
my knee jerk reactions:
1)doubts are NOT unchristian. doubts lead us to questions, and questions lead us to bigger answers about God. my God is big enough to deal with any doubts.
2)that being said, i would try to keep doubts in context. questions make sense, but just because you have a question about God, even if there is no answer, doesn't mean that its a reason to turn from God. we are dealing with an infinitely big God. lets face it. there are gonna be things we just don't get. no matter how much we try to get them. but, i believe searching for answers to these questions can bring us closer to God (if we search in the right ways).
3)the idea that science and God are mutually exclusive, honestly, is just silly. the most cutting edge physics seems to be telling us that there is more in the world around us then we could ever imagine. the idea of dimensions on top of each other, this entire universe operation on strings that we can barely conceive of...its starting to look like science is moving towards proving that God DOES exist.
4)as for the specific doubts, some people on here had some good advice. i'd recommending spending some time with God, meditating on it, researching and trying to find what the bible says on the issue (and WHY), and talking to people you respect and who have been doing this longer then you. all of these things were given to you by God so that you could lean on them when you need to (and when you don't need to, really- there shouldn't be times when you're not leaning on these).
hope you see this, or come to conclusions like this, or see something else that helps, or come to other conclusions that help.