Kidney numbers correlate with CTD activity

I have extensive medical records on a weekly basis for about a year now. I know the kidneys (kidney in my case) can be affected by the various types of CTD's and that Raynaud's is usually present in most of the CTD types as well. I'm having a lot of Raynaud's issues currently and I noticed that my kidney numbers have also become progressive worse wrt non-flareup times. Is this my imagination or has anyone else noticed something similar? I've had three bad Raynaud's periods over the last year and the kidney numbers always seem to take a dive at the same time.

I'm just amazed that two very different clinical issues can be so easily linked. I guess it just takes awhile to get use to the fact we, with autoimmune problems, are really sick and in a complex way, even when we're the victims of the disease. Makes it understandable why others are never quite sure what to make of our strange list of ailments.