So I've been back for a repeat test, and I asked the phlebotomist/ nurse what it actually meant, and she said it was a marker of arthritis - either rheumatoid or osteo. I'm a bit worried now, actually. My nan had really bad osteo-arthritis, and rheumatoid arthritis doesn't sound very nice either.
I don't know what I want from typing this on here, but I haven't anyone to talk to at the moment that wouldn't end up being really worried and upset! I have to wait until monday for the results, and I really don't know how I'm going to be able to wait that long (well, obviously, I'm just going to have to, I suppose!!).