Hi, I'm interested in the outcome of your daughters symptoms. My girlfriends daughter is also 7 and dealing with the same symptoms and even the same 3am time when they vomit. They ruled out a brain tumor and are now looking at food allergies. Any help would be greatly appreciated. Thank you!
I actually just recently saw a program about this type of thing on tv - obviously not sure if the situation is the same as with your daughter, but thought I would pass along the information.
On the program I saw (I believe it was the program Mystery Diagnosis), the child was having nighttime vomiting. She actually would vomit at least a couple times a night and afterward would immediately fall back to sleep and wouldn't remember the occurrence. As it turned out, she was having seizures in the part of her brain that triggers vomiting.
Again, I don't want to alarm you and I don't know if any of this is like what your daughter is experiencing, but thought I'd pass the info along.
Best of luck and I hope you get some results soon.