My herd sire has been "clicking" in his joints and been "off". Normal temp and optherwise normal body condition. He is almost 3. I treated with 3cc Vit. B , 1cc Ivermec, 5cc probiotic paste, and a CDT booster and sent him on his way. That was 4 days ago. Now he has one eye completely dilated and one is normal. This tells me something neurologic is going on. Please, if you have any ideas I would appreciate it.