Did Elliot barf from his dinner at Tam O'Shanter or Alison and Daniel's caroling? Greg and Alison talk on a variety of health stresses (kidney stones, anyone?), make their life and baby-related predictions for 2019, and help a mom manage her kids' screen time. Plus, Greg gets a party hot tub and you'll find out what's giving Alison the pregnancy phenomenon known as Lightning Crotch!