You always hope that a visit to the doctor will solve any mysterious pains or unexplained symptoms. However, sometimes doctors have trouble pinning down certain conditions and disorders. This is largely due to the fact that many symptoms are nonspecific and vary with each person. On top of that, many diagnostic tests don't give a black-and-white answer.
Want to know more? Then check out the following slides for 15 conditions that are notoriously difficult to diagnose.