Hi. I have fibro also. I've been gluten free for several years and find that has helped decrease my fibro symptoms. Gluten ramps up the joint and muscle pain, so for me, anyway, it's worth avoiding. Each of us is different, though.
Eating high sugar and/or highly refined foods, especially carbs, can also increase my fibro pain and fatigue, especially if I eat a lot of them. I do include about an ounce of excellent quality dark chocolate in my plan every day, though. Especially psychologically it's good for me!
Having fibro is a journey of discovery, isn't it? What works, what hurts, what to avoid, what to have more of. I've certainly gotten little help from western medicine. If I can help myself by diet and lifestyle, that gives me personal power and control. I prefer that to pharmaceuticals with nasty side effects, any day.
One day at a time...