I have a nigerian dwarf goat, about 3 years old, who holds his front right foot off the ground when he first gets up from resting. After he walks around a while, it improves, and he seems to set it firmly on the ground. His hooves tend to grow extremely fast, and that one got out of control last year. I have been trimming it back, and it now looks pretty good, although a little misshapen, and it does not seem inflamed, although, the side is cracked. Does his lameness necessarily have to be his hoof, or could it be his knee joint? He tends to get up from resting on his knees, instead of on his feet.