The doctor called this morning- the X-ray we did on Wednesday showed that dd is completely impacted, and that is what is causing her so much pain right now. Dh just went out to get her medicine to clean out her system, and then she will be on a daily regimen to help keep this from happening again.
It's a funny thing to be happy about, but at least we can clear it up easily. Of course, this is not the end cause of all of her problems- just a symptom of it. Part of the process, but good information to have.