I was detected as B12 deficient when I had burning sensation in my hands, arms and shoulder blades. Fortunately, my doctor asked me get my serum B12 checked when I told him my symptoms. So on 18th Jan 2018, when I got it tested, the level was "206 pg/ml". As per him, I should at least have 500-600. He then started me on injections and I got 10 of them over 5 weeks. So my injections stopped on 19th Feb 2018 and then on 24th Feb, out of curiosity, I got my levels tested which came back as "1710 pg/ml". This was post 10 jabs of methylcobalamin of 1500 mcg each.
Now, he asked me to continue on tablets of 1500 mcg along with few other vitamins for couple of months. I took a tablet everyday for 60 days and then got my levels checked to make sure that I do NOT have absorption issues. This time on 24th Apr 2018, my level was "1830 pg/ml".
Many of my symptoms went away in last 4 months. Some came back for a day after 2 months of gap and then again went away.
I now have a concern: Does the high level of serum B12 indicate issue of absorption of B12 at Cell level? Following is the summary of levels:
18th Jan 2018: 206 pg/ml
24th Feb 2018: 1710 pg/ml (Post 10 injections of 1500 mcg)
24th Apr 2018: 1830 pg/ml (Post consuming 1500 mcg tablet everyday for 60 days)
What do you guys think?