Thank you MrsD for your response. Your are a wealth of knowledge which is so refreshing!
I have not read the link but have it bookmarked so will do so once I finish with this post.

I found sublingual MethylB12 in 1000mcg. I think I will check out a healthfood store that is close by to see if 5 mg is available. With sublingual tabs do they have to be taken under the tongue or can they just be swallowed for absorbtion?

You mentioned Methylfolate ....... I take 1 mg Folic Acid daily (because of low folate at the time of B12 def diagnosis). Is there is a difference between the two?
I also take 300 mg Ferrous Gluconate x3 daily because of low Ferritin, again found at the time of the B12 def diagnosis.
Just as a side note, I also take Synthroid daily for Hypothyroid.

Off I go to read the link