The only thing worse than feeling lousy is being told that your symptoms are all in your mind. Joni Mitchell recently made the news when, after being found unconscious at home, stories circulated about her battle with Morgellons disease, a mysterious illness—which includes symptoms like the feeling of bugs crawling on you—that many researchers don’t believe exists.
There are plenty more commonly known diseases and disorders that also present with symptoms that can lead doctors to mistakenly declare them psychosomatic or attribute them to a different illness altogether. And the harder an illness is to determine, the more likely you are to get that incredibly frustrating “all in your head” diagnosis. Read on for the 9 most common.