Hello, my 6 year old son has had white/clay colored diarhhea for the past two days. He has had a poor appetite, and has complained about stomach discomfort, but does not have any other symptoms (nausea, vomitting, etc). Prior to this episode, he passes stool every 3rd or 4th day. In the past he has had green stool on a handful of occasions. Any input would be greatlt appreciated, thanks.