[MyPemCharlie]

Thanks for your replies. Charlie ate this morning and pooped a couple hours later than his normal schedule, but no vomiting and his stool looks healthy. So I don't know what upset his tummy yesterday. Everyday he rips a lot of grass up by the roots, but seems to chew it and then spit it out and "crunch" up sticks and spit the pieces out. Maybe he did swallow some yesterday. I don't know. He's never vomited before yesterday. Anyway we appear to be back to normal today and hopefully won't have any more incidents.