Warning: This is an anti cry it out post. If you are very pro cry it out and will be offended if your method is questioned, please do not read this post.
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I say read different books. Read something by attachment parenting friendly experts. Start at the API website and find some books that respect the reality that children need parents at night too. Yes, crying it out works, but at what cost to the child? What does the voice deepest inside you say? How do you feel when your child is crying? Do you feel pulled to go to her and care for her? I say go. Hold her, love her back to sleep, and ignore anyone who says it is wrong to be there for her. Loving and attending our children does not need defense. If she is uncomfortable, how can you not care for her? Maybe you could try to see what she feels by seeing if you can find a way to make your legs be like hers for a night. Simulate her experience and then decide how you feel about not tending to her. I personally would not ignore any babies cries at night and think cry it out is the saddest thing and I never do find a way to understand how a mom can ignore those cries, but for sure no one, even a mom who can use cry it out can possibly think it is necessary for a child who is not comfortable.
Please, we have alternatives to cry it out. IF you do not want to be a night time parent, at least try ways that do not ask your child to cry. Check out "No Cry Sleep Solution" by Elizabeth Pantley. She is a real mom with four children and she has some great ideas that are respectful of a child's real need for care at night.