I too would consider an Integrative doctor.

I have lupus and related autoimmune disorders. One doctor suspects Fibro, but I'm very unsure of this.

I have found that a good multi vitamin and extra supplementation with vitamin d3 and a b complex has helped me a lot with fatigue.

Additionally, I have found greatly reducing my intake of flour and sugar to be helpful. And I have cut out soda entirely and drink lots of water.

These sound like small things, but over time, they have truly helped my energy levels.

I take a low dosage of melatonin for sleep, but this might not be enough for you. However, it might be worth a try.