It might have been me who mentioned it here? I had it tested often in relation to my Rheumatoid Arthritis. It used to go up to about 30 when my joints were flaring and my ESR/ sed rate was much higher at about 60-80 often. I know it's used to measure how successful immunesuppressant drugs were being with my inflammatory arthritis. The thing is that even as the joint inflammation waned my inflammatory markers would continue to fluctuate. But then I've had other infections and drug reactions which might have caused my CRP to soar to 160 - only symptoms being those of pancreatitis from drug reaction to Imuran and raging SFN. Last time my ESR was taken it was around 30 about seven months ago and my CRP was around 8 (normal range 0-5) which isn't very high for me but still a tiny bit raised.

I don't know if the Small Fibre Neuropathy is part of an inflammatory process of not. Not to the extent that my RA was but I feel that low level inflammation is causing my SFN - which makes sense of why it seems to be progressing to affect almost every part of me now.

Thank you all for your comments. I might ask for it, but it seems to be quite useless other than for the reasons noted, so I'll ask for it, if at some point there is doubt that I have inflammation.

Mine was in range (0.7) It was covered by insurance and the doctor suggested it. It was at the beginning of my journey.