What to do if dog is coughing and eating grass?

Philippines
@NCgirl (488)
October 10, 2008 12:46am CST
Harley - my new baby
I just got a new dog, she's a 4 year old labrador, my husband and I adopted her just barely a month ago. She is so sweet, and we're buddies, I'm like taking care of a real kid. She whines a lot! Anyway, just this morning, her strange coughing sound woke me up, it sounds like she's choking and trying to clear her throat, I was so worried that I hurried and walk her outside the house, thinking maybe she needs air or she feels suffocated. When she got outside, she ran on the lawn and started eating grass. That's strange! I have never seen a dog eating grass before.. And then she threw up a white fluid. I'm guessing she have an upset stomach, I got her to drink a lot of water and eventually she ate too.. she still feels like throwing up..but after some minutes she was fine. What was that? Have you seen your dog experience that? I'm still worried it might lead to something worse. Any info?