Daughter wouldn't sleep again last night. We looked at her mouth and her tongue has a sore on it that basically covers half of her tongue. My wife started crying when she saw it. This really is the worst feeling, not being able to help your child.
Ricky - While not as immediately serious, we have been dealing with sleep issues with my older son for years. The one thing that it has taught me is that there are always other doctors. If you are not getting the help/answers you are looking for from your normal pediatrician or others, keep looking and take her elsewhere.