Also, you may find spit up if they have been coughing, & you didn't know, that is a sign of grass in the throat, as it is very hard for them to get it up, if you find spit up, ( not vomit), with grass in it, then it is confirmed & hopefully they got it all up, watch for the coughing to stop, or...
My cats get grass stuck in their throats sometimes, it is not always bad, but the first time my cat had it, I did take him to the vet, & that was his diagnoses, sometimes you can hear the grass when they cough, it sounds like when you whistle thru grass??
Or it may pop up just for a second...
