There are foods that are inflammatory and foods that are anti inflammatory. One of the biggies to avoid is fried foods (a weakness) and ultra-processed.
There are many sites online that I’ve found helpful. Search for the words and see what comes up. Just remember there is no miracle cure for fibromyalgia. We treat it, deal with it, and sometimes it’s all we can do to handle it. Every person has a different level of pain or discomfort. Some people’s symptoms, like sleep, are worse or better than others. Get to know yours. See if you can see a pattern. Don’t be afraid to say, “I feel like crap today and I’m not going to do my grocery shopping today.” Don’t punish yourself if you fall off the healthy food or exercise band wagon. Reward yourself once in a while for even little accomplishments.
Good luck. It sounds like you have a plate full. Some of the symptoms may overlap and even exacerbate each other. Take on your issues one at a time. We didn’t get it all at once; we can’t treat it all at once.
Good luck 🥰