Oh goodness, that's an awfully long time to be dealing with a symptom, especially fatigue, but definitely not uncommon for many of us. I wish I could be more help to you. As I had mentioned, I do notice a difference in my energy levels when I'm taking B vitamins (I take a super B supplement every morning that includes them all plus vitamin C). Getting up and moving around helps to keep me awake for the moment but does nothing to help in the long run.. I think the B12 and adrenal support is a great idea. Can't hurt to try.
I know that, what works for one, may not work for another. Don't give up trying to find what works for you. I know it's not just physical trauma that you're going through, it's a huge toll on our emotional health as well. I emphasize and I do hope you find some relief. ❤