This website from the National Instit of Health was really helpful in explaining values, recommended daily allowances, ex of foods with B12, causes, treatments, etc.:

http://ods.od.nih.gov/factsheets/vitaminb12

Hope this shed some light for others too.

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Thanks Flooded! for mentioning what your doc said about taking oral supplements in between. I talked to the doc and they agreed for me to start doing this too.

Thanks Inedible! about the suggestion for the sublingual tablets; this they agreed would be the best route to go as well but never would have know this was an option were it not for your post.

Thank you so much y'all!