Do what you can to get to a rheumatologist asap. All of your symptoms sound as if they could be Lupus related and you may be presenting with other auto-immune symptoms. Did your ER trips provide you with any cortisone or anti-malarial treatments (prednisone and/or plaquenil)?
You should seek treatment from a rheumatologist immediately...I am not a doctor and cannot diagnose you. But, I do feel that it is important for you to seek a specialist and for auto-immune disorders, that would have to be a rheumatologist.
Please let us know how you are doing!!!
Take Care Of Yourself