I had been diagnosed with fibromyalgia and chronic fatigue years ago. My ANA results were normal. After a recent move my occasional feeling weak became a daily disability. My heart checks out fine as do most of my bloods. I have prediabetes. I wake up tired even though I've have 12 hours sleep. If I do a 2 hour event like just sitting at an outdoor concert, I'm so exhausted I'll be in bed all the next day. I can't take walks over 4 blocks (round trip) without being exhausted. I ?