B-12 levels--fatigue--few doctors check this

I am in the midst of just over 6 months of incredible fatigue and lack of energy, and the need to take naps. It has been horrible. My one HMO primary care (PC) did nothing. I changed PCs and my new one decided to check and I have very low B-12 deficiency.

In reading about B-12 levels, it appears that few doctors actually check this. I have one of so many articles about this below and if you have any of the symptoms (you don't have to have all of them), discuss it with your doctor. It's a fast, easy blood test and so worth it.

Sometimes with low B-12, taking B-12 pills won't work because of absorption problems so the doctor gives weekly injections for a while as the injection absorbs quickly and very well, to help get you back up to a healthy level, then reduces to monthly. Its worth reading.

http://thyroid.about.com/cs/newsinfo/l/blb12anemia.htm

I have to have injections for 4 weeks in a row and then monthly. But for how long do they have you getting injections. When I asked initially, I was told for a very long time. I have no objection because it is zero cost under my HMO, but I was just wondering. Did your fatigue improve once you were getting the injections for a while?