I went through all of those questions, too - for two years or so. I had one rheumy who also kept saying that my "numbers" were insignificant, so he refused to treat me for the very real pain that I was feeling. The next rheumy that I found told me this:
I was a little bit positive to four things - Lupus, RA, Sjogren's and psoriasis. She said that although the numbers weren't high enough to treat for any one thing, when you add all of the four together and consider the cumulative pain, it justified treatment.
Hang in there, and keep looking until you find the right doc and the right answers.