Hi! I have spent days, hours, weeks, reading here and other places, as many of us do, searching for answers. I am finally ready to post, in hopes of getting some opinions from some of you. To make a long story short, I have neuropothy symptoms in my feet, burning toes and tingle, that is sometimes very painful. Heel pain horrid. Right back of heal has a numb spot about a quarter in size. These symptoms sent me to my dr, with fear of diabetes and/or diabetic neuropothy. The dr did a blood test, lots of results but the hightlighted result was a TSH of 10.3 She refused to prescribe desicated natural hormone so I went to another doctor. She said neuropothy symptoms was from thyroid. Next dr ran more blood test on theyroid with result of T4 Total 10.7 and T3 Free 3.66 and T4 Free was 1.26 He agree to prescribe nature throid desicated hormone. Had nothing to say about neuropothy in my feet. So I am doing my own research, led me to B12. I went to a lab and ordered my own lab test on B12 serum and blood MMA. They did not offer the active B12 test that I wanted so this was my only options. My Results: B12 Blood serum >3000 HIGH pg/mL Range: 193-982 MMA <0.08 LOW end of normal nmol/mL Range <0.40 So my own opinion, this means I have lots of B12 but I am not absorbing???? Since the serum is so high but the MMA is so low?? Oh, I had NEVER supplemented with B12 prior to the test. Only a cheap walmart Bcomplex one a day, which had very little B12 in it. Any opinions??? Im not sure what to do next....figure out why/if I am not absorbing B12 or what? thank you for any opinion.