So, I have a 3 month old doeling (Val) who has some serious diarrhea. It is light green, no black tar or blood in it. Its crazy poo. Nasty. She is eating vigorously and is alert and playful. She isn't bloated and doesn't seem sick in any sort of way. I noticed my new doeling (called Narf, nearly the same age) was also showing a bit of a filthy bottom I thought may have come from a little runny poo, so I started treating them both for Cocci immediately. I use Sulmet. It seemed to me like Narf's poo went back to normal almost immediately. I saw her pass normal pellets about 20 minutes later. Of course maybe she never had diarrhea in the first place and her butt was just a little filthy. Lol. Val, on the other hand, hasn't responded. I'm just finishing Cocci treatment today. I also thought it might be her diet, as she is still drinking from mom, and is out on a luscious spring pasture. They also have access to some alfalfa, as they generally steal anything my horses drop (and they are messy, they drop allot.) I separated her from everyone just in case whatever she has is contagious. I fed her very little to see if her poo would get better, but its just as nasty as ever. I also gave her Probios yesterday. I'll give her some more today. The only thing left to try is to worm her again (she was wormed early on in life.) I'm going down there right now to give her some ivermectin. Any other suggestions if its not worms?