Bothered by chronic pain? Its source may surprise you

Pain that lingers or worsens is usually a signal to see a doctor.

Medical professionals, however, don’t always diagnose the problem correctly in the initial visit.

Chronic pain sufferers, in particular, may want to get a second opinion.

Researchers at Johns Hopkins have reported that 40 to 80% of chronic-pain patients are misdiagnosed.

Being misdiagnosed can lead to ineffective treatments and perhaps …