Is either Dr offering any treatment?
Is the Dr who says you have MCTD a rheumatologist? By "RA specialist" do mean mean a rheumatologist or a rheumatologists who specializes in RA?
I guess if one Dr is offering treatment and the other is not, I would try the treatment. Sometimes these auto-immune diseases are not fully diagnosed till we see how we respond to certain treatments.
Also, we have a forum specifically for RA, you may want to do some reading over there (www.healingwell.com/community/default.aspx?f=10
) as well as here to get more information.
Lynnwood, Lupus & Sjogren's Moderator, Dx: 2002DIAGNOSING LUPUS & HW's LUPUS 101
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