It's not bipolar ... it's PANS

Tessa Gallo poses next to the countless psychotropic drugs she was prescribed during her misdiagnosis for bipolar disorder, at her home in San Jose, Calif., Thursday, April 17, 2014. The 16-year-old has begun to improve vastly since two Stanford doctors identified her condition as PANS, a condition that looks similar to bipolar, but is caused when the body's immune system attacks the brain. (Karl Mondon/Bay Area News Group/MCT)

Misdiagnosed bipolar: One girl’s struggle to get the right treatment.

ONE day, Tessa Gallo was a typical sixth-grader, performing in school plays, running on the track team, goofing around with her two sisters and giggling with girlfriends at sleepovers.