so sorry that you are in this frustrating diagnostic stage....such a difficult time. your symptoms certainly sound like an auto-immune problem, hopefully your rheumy will be able to sort through everything and give you a diagnosis. there are several members here who have a lot of information about the different blood tests and what their readings mean. i am sure some will be along very soon.
i too searched for over 10 years for a diagnosis. my ana has always been elevated and homogeneous. in 1996 i was diagnosed with fibromyalgie, and it was october of 2008 before i was given the sle diagnosis. whereas my labs indicated lupus, the symptoms just were never enough....this past summer i began to feel much worse, and seemed to spiral downward, so my rheumy and i did some serious talking about the symptoms. upon specific conversaation, she knew it was lupus. as it turns out, i did not have enough information to answer the questions about lupus symptoms. for example, i did not realize that symptoms could come and go, so when she asked me about things like the rash, my answer was no if it was not present at the time. also, when she asked me about mouth sores, i said no, because i did not realize that mouth sores did not have to be big and painful.
it was after i joined this group that i learned what really happens with lupus symptoms, i was able to give my dr. better information, and we are on target with treatment.
i know this was long, and probably did not make much sense, but just keep reading other posts, and you will learn so much.