I have headaches and fatigue and I'm tired of being tired...?

I happen to be having the same problem that's how I found this question. Even the depression, which I had not seen mentioned yet. I am a vegetarian/vegan and recently gave up soy products some of which contain b12 I am thinking my problem is lack of b12, maybe this is the case for you? I hope so since its easy to solve. I am going to see if it works for me. Good luck!