Fibromyalgia
If you’ve been dealing with chronic pain over a long period but your doctor can’t tell what’s causing it, there’s a good chance you’ll receive a fibromyalgia diagnosis, which basically entails widespread muscle pain. The issue is the problem isn’t often fibromyalgia at all: A study published in the journal Rheumatology found two-thirds of those who were told they had the condition were misdiagnosed.