I was just diagnosed with Melanoma, and scheduled for surgery in 2 weeks. For the last 4 years, I have been struggling with my health. Recently, I was told that most of my symptoms were related to severe B12 Deficiency, but they can not pin point why I am so B12 deficient. Could it be due to the Melanoma? I'm not sure how long it has been there, as it is what they called "hidden melanoma" and I'm not sure how long it has been there.View Thread