I agree about having your daughter checked for Lyme Disease. However, the tests for Lyme are not accurate because Lyme spirochetes invade tissues and do not stay in the blood stream. A lab test may show that she has Lyme antibodies which indicates a past infection. I had an active Lyme infection in 1992. It has been a long and difficult road with various health problems. This link should get you to Dr. Burrascano report and treatment guidelines if she does test positive for Lyme Antibodies.
http://www.ilads.org/files/burrascano_0905.pdf.
Also, you should have her tested for the following viruses: Epstein Barr, Human Parvo Virus, and HHV-6, the latter has been found in many people who tested positive for Epstein Barr.
Eating a mainly alkaline diet will help with headaches and body pain
Plus Cymbalta can help will the pain relief.
We will say prayers for your family.