About five years ago, I bought a 14.2 mare out of a farmer's field, mainly for fun and because I liked her temperament. She was broke, it seemed, and I continued to train her for small jumping classes and pleasure riding. No matter what I did, I couldn't get her to stay on her left lead for more than 3 strides without her tossing her head and breaking to a trot.
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?