How would you describe your pain?

Pain is of course heavily associated with Fibromyalgia and gets talked about a lot in this subreddit, but I feel like it isn't a particularly well defined term, and I'd like to better understand the types of pain people with Fibromyalgia commonly have. How would you describe it? Where do you commonly feel it?

For context I have been diagnosed, and would describe my main symptom as more of a general, constant ache, especially in my muscles, relative to their size. I'd probably say I'm in pain overall, but I possibly wouldn't say any one part of my body is painful, just achey. It feels like I’ve had a really long day on my feet and need to sit down, even when I’m already sat down. Even though it’s not a concentrated pain, it really wears me down and makes tasks feel so hard and frustrating, a bit like trying to run while submerged in water.