TMZ.com: JoJo Siwa Says She Was Rushed to Hospital For 'Excruciating Pain' Before Concert - JOJO SIWA BREATHING TROUBLE, PAIN LEAD TO HOSPITAL VISIT ... Doctors Discover Burst Ovarian Cyst - "I WAS BLACKING OUT" - JoJo Siwa bounced back like a "Boomerang" after a scary medical incident landed ...