I have a beautiful little Boer doeling that is 4 wks old. She hasn't been herself for the last few days. Seems depressed. Is eating. Today I noticed she was walking slow and I took a closer look both her front knees are swollen and one eye is runny. She was wormed 1 week ago w/cydectin and treated for lice with the rest of the herd a few days ago. So far no one else seems sick there is only one other her age the rest of the babies are 3 to 5 mos old. I have not taken a temp. Should I isolate her (she is still nursing).