What Causes Constant Headaches And Fainting?

my daughter has been ill for a year now. She was diagnosed with Potts and many other ailments, many of which were false. Her symptoms have been almost constant headaches in many parts of her head at the same time. Episodes of almost passing out frequently, severe muscle pain, sensitivity to certain lighting, including grocery store lighting and digestion problems. She has couple of nodules in her lungs and something wrong with her thyroid, just to mention a few. She also has a rapid heart rate and her inflammation blood tests came back high. We don t know where to go from here, it seems she has had every test possible done. Thank you,