Good Day all. I am writing from Toronto, Canada. I was diagnosed with B-12 Deficiency on February 23rd. Levels were tested at 150. My issues began in early January with a back injury and progressed to pain in other areas. Oddly, it was my physical therapist that suggested B-12 as it was not on my GP's radar. I was prescribed monthly injections of 1000 MCG Cyanocobalamin and daily sublingual 1000 MCG. Levels were tested again on April 10 and came in at 515. I thought they would be higher as my last jab was on/about March 25th and I never miss a sublingual.
My symptoms have progressed to Neurological with pins and needles in hands and feet, burning feet, anxiety/depression, tinnitus, etc., even with this increase in B-12 levels. Fortunately in Canada I can go to a naturopathic doctor and get as many B-12 Shots as I want for a relatively low cost.
A board blood work up (they took 12 vials) showed nearly everything within normal with the exception of Vitamin D which came in at 56 (reference range 75 - 200).