I'm a male with fibromyalgia. With it comes differents types of pain throughout my body, at different levels of pain, at different times. But every day there's pain. Also different degrees of fatigue at different times. There's cognitive impairment that comes and goes, and sensory overload. Also lack of sleep due to constantly waking up once I finally get to sleep. Ibs is present too. Migrains come 2 or 3 times a month. Other people I know well have Chronic Fatigue Syndrome, but the people I know have absolutely no pain. All the other symptoms though, matches close to what I have. I read on the board here where people have CFS, but also has a lot of pain with all the same symptoms. So my question is what determines the difference between the two? I'm just asking because I really don't know and I'm just trying to learn along with everyone else.