Hawaii County Mayor Harry Kim was medevaced from the Big Island to The Queen’s Medical Center in Honolulu Thursday morning after suffering chest pains. Kim, 78, who has had three previous heart attacks and underwent quadruple bypass surgery 10 years ago, drove himself to Hilo Medical Center at about 4:30 a.m., and was medevaced to Oahu around 6:45 a.m., Kim’s office said in a statement. “He knows the symptoms, and he knows what to do,” Hawaii County Managing Director Wil Okabe, who is acting…