I called out a chiropractor, assuming it was her back left hip because of a slight raise in her left flank, and had her treated multiple times. The chiropractor told me that it was quite possible that I was right. Still, it never solved the problem. I figured I didn't want to force her on her left lead if it was causing her discomfort and pain, so I just left the situation alone. When I moved countries, I did have to sell her. I've always just had this curiosity about what it might have been or what I could have done to help her. Any ideas?