Isabel Herrera answered 4/23/2012 From Time To Time, My Beagle Will Eat Grass Agressively, Throw Up, Wander In The House Licking The Floor And Eat Any Plants In The House. I Don't Know What Causes It. We Live In Several Differnt Places, But The Behavior Doesnt Occur During Travel? My Beagle goes through the same thing from time to time. Its indigestion. A Gas-X or Tums will help. Also, soothing their abdomen can help them with the passing of gas, burping them so to speak.