Debbie, others are probably much better able to give suggestions. My two cents is this: You are likely unable to utilize the B12 so it is staying in the bloodstream. I would think that the folate is crucial. The shaking might be adrenal, might be need for potassium or electrolytes. I find that good sea salt and Vitamin C is crucial for my adrenals to function. Vitamin C is the raw material that the adrenal gland uses to make hormone. Maybe try sea salt, C, potassium, magnesium then add a little folate, then try to find a B complex and trace minerals you can handle, and scrap the multi-vit. Then try the ADB12. You'll probably have to work up on the folate and ADB12, watching potassium levels, and then will likely eventually need MB12. BTW my doctor does not follow the guidelines sent out with those lab results, he throws those pages away. Not saying it is worthless info, but I wouldn't follow it like it is the answer.
I had low glutathione and the precursors by testing, and was taking glutathione, NAC, glycine, taurine. But with the active B12 protocol, once I started folate (was already on MB12 shots), I immediately no longer needed glutathione or NAC, and after getting my MB12, ADB12 and folate levels up high enough it appears that I may be able to cut back on glycine and taurine now.
Everyone is different but hopefully what has helped me might help you.