My GP told me that Fibro often results after an injury or an illness. I got shingles and suffered from a frozen shoulder within months of each other - and he thinks that triggered the fibro. This was 10 years ago. I have learned to live with it, and manage it.
I definitely find that I must not push myself, so on a good day, I do about 80% of what I feel I can, and then stop, even if I think I could do more. So, 30 mins gardening instead of an hour, a 20 minute walk instead of 30 minutes...this really helps. Once I'm exhausted, it takes ages to recover, so I try to avoid getting to that point. However, I am better for moving around, even when I ache all over.
I'm better in the summer than the winter, and my symptoms improved loads when I lost a lot a weight last year - less pressure on joints perhaps? I find a wheatbag helps with the pain in my legs. And I take CBD capsules when I'm having an attack, which helps too. My hips are sometimes so painful that I could could cry.
A couple of years ago I could hardly get out of bed and was worried about getting to the loo in time. I felt so pathetic and helpless, it was horrible. A flare up could last two weeks, sometimes more.
I do understand how you feel, all of you. 