I was diagnosed b12 deficient on february of 2011. The major and serious symptoms started on june 2010. I had some minor symptoms before that usually came and went away spontaneously. Started the b12 protocol and improved a lot. After 18 months I'm very close to be cured. Think more 6 months will be enough to go back to sports routine. Had many symptoms. But one appeared four to five months after starting the treatment, tinnitus. First it came and went away almost instantly. It started like a deafness sensation them the buzzing and everything was ok again, didn't took more than 2 or 3 seconds. This happened several times before One day it happened again and became permanent with a dizzyness that did last for a month and a half. No dizzyness today but the buzzing is still present and permanent annoying me around the clock. Anybody here had the same experience? Will it go away for good in the future?