Hi, this is my first year with sheep. I have 10 ewes, 1 ram and 13 new lambs. The ewes are Katadins. All are doing well except 1. This yearling ewe has had runny poop for about 4 weeks now. I assumed it was worms. I treated her at 1st with a drench of Ivermectin. 3 weeks later no improvement. I talked with the vet and she gave me some dectomax which I gave a week ago. There is still no improvement. All my other sheep have finished lambing but she has not. I'm not completely sure she is pregnant by looking at her. Any ideas? Also, should I separate her to keep her from infecting the pasture? I don't want to stress her anymore, but I don't want to spread her problems.