Mom-of-six Kim Zolciak-Biermann had just returned home from a taping for season 21 of Dancing With the Stars when her fingers began to tingle and she lost the ability to speak. Rushed to the hospital, the Don’t Be Tardy… star was told she’d had a stroke (caused by a hole in her heart that she’d unknowingly had since birth). Successful heart surgery followed in late October, and she was soon given a clean bill of health. But the ordeal is never far from her mind: “If my hand starts to fall asleep, I panic, because that’s how my stroke started,” the 37-year-old mom (of Brielle, 19, and Ariana, 14, from previous relationships, and Kroy Jr., 4, Kash, 3, and twins Kaia and Kane, 2, with pro football player husband Kroy…
