No formal correlation from my PCP either. Before I was diagnosed with any neuropathy, (at first it was "idiopathic small-fiber" - without docs bothering with a skin-punch, then, more recently "idiopathic polyneuropathy" after several EMG's) I had a bout of anemia which my primary doctor ignored for about 3 years - until I felt like passing out and insisted on a ferritin test. I don't feel like I can rely on doctors anymore to go out on a limb and even try to diagnose or treat anything unless it is blatantly staring them in the face. And even then! I had blood tests for almost 15 years with slightly macrocytic red cell values and low red cell counts and low hemoglobin. I finally got my PCP to do pernicious anemia testing after finding out that a second relative of mine had a history. By then I had decided take matters in my own hands and add regular B12, methyfolate and intrisic factor supplements. My tests came out normal, according to PCP. I regret not having a clue about this 15 years ago. Possibly could have avoided permanent nerve damage.