The best way I can describe it is that fibro is a muscle disease. It causes our muscles to not have the ability to fully relax. Tight muscles become imflamed, but not nearly as much as the term inflamation. As when joints (bones) are inflamed there is a blood test that can measure the amount of inflamation in the body. With fibro the test is usually negative or has a low value. And thou fibro affects the way our muscles behave it does not do damage to the muscles that would show up on any test. That is why it is hard to diagnosis except by poking certain areas of your body to envoke a response.
That said, like I said stress from pain or fatigue, or mental brain fog or countless little symptoms that can crop up makes us filled with anxiety, wondering what is going on. We can't sleep well or do the things we love doing, we have muscle weakness and fatigue can drag us down, and this can bring on depression. The goal is to avoid the depression as much as possible.
Above I gave you some suggestions to try. If you have trouble sleeping I would suggest you look for a cotton fiber bed pad. This is not a regular mattress pad, but is from 3-4 inches thick and lays on top of your regular mattress. They come in all bed sizes and are made of cotton fiber or stuffed with goose feathers, or made of foam. What they do is help relax your muscles as it feels like your sleeping on a cloud.
Another thing to try is keeping warm in your bed by throwing an extra blanket over your feet and lower legs. This will stop most of the bad cramping. If your legs feel tired wear knee socks, as they promote healthy circulation in your legs and boost the strength in the legs. Always wear shoes that are comfortable but supportive, and this will ward off painful feet issues.
That is just a few suggestions to get you started. Read more of the post topics and you will start to feel better in knowing you can improve your health a lot without medication, but if needed stick to only a few basic ones to avoid allergic reactions. I use gabapentin and Excedrin migraine, as I am allegic to most of the other meds used to control fibro. Ask your doctor to start you out on a low dose to see if you can tolerate the meds before trying to up the dosages.
Don't worry you will get the hang of it and hopefully feel better soon.