B12 and extreme fatigue

I thought my extreme fatigue was due to worsening depression and a medication change. My psychiatrist told me today that a B12 deficiency can contribute to extreme fatigue and depression. I'm glad she looked at my blood test results as the GP didn't comment about my B12 levels on a recent blood test.

It is so frustrating when a doctor misses something important. It's definitely worth getting a second opinion from another doctor if your symptoms aren't improving.