Mark,

It sounds likely that your body is being helped; if B12 is helping you it is not just lessening symptoms.

That is a familiar pattern. And many experience fluxuations in symptoms, even temporary worsening of symptoms as the body gets down to real work.

And regarding the buzzing. Some get buzzing as they are worsening, but some of us have had buzzing during both worsening and healing. I had buzzing only during healing.

No guarantees, but it looks good!

rose