The woman who drove a minivan full of her children and nieces the wrong way on the Taconic yesterday was feeling ill, but there is no indication of drugs or alcohol being involved in Westchester's worst accident in 75 years. Diane Schuler of West Babylon was on her way home from a weekend camping trip upstate when she called her brother on Long Island to say that she felt sick—apparently so ill that he offered to come get her if she would pull over. However, she didn't know where she was exactly and two hours later, she veered onto the other side of the highway. Schuler, 36, apparently had been on the wrong side for 2 miles before crashing head first into an SUV, killing all three Yonkers men inside it—father and son Michael and Guy Bastardi and their friend Daniel Longo. Schuler, her two-year-old daughter Erin and her three young nieces—Emma, Alison and Kate Hance— all died in the crash. The only survivor was Schuler's five-year-old son Brian, who is amazingly in stable condition. A secondary collision with a Chevy Tracker left a Freehold couple with minor cuts that they were treated for. Police now await autopsy and toxicology results to learn more details of Schuler's condition.