My Paint mare has been lame since this spring. She seemed perfectly sound when I got her. I took her to the vet right away and he said she was sound and healthy. The only thing I noticed in the first month was that the saddle always tipped a bit. However a month or so after I got her she started favoring her front left leg, and soon was "head bobbing lame". I put her on rest and kept an eye on her, thinking she pulled something, when it didn't get any better I took her to the vet again. He did flexion tests, which didn't show anything. He then numbed her leg in various spots until he found the lameness seemed to be in her front left heel. He then took x-rays, which didn't show anything wrong. He really didn't know why she was lame, so he decided that it was most likely the deep digital flexor tendon, and she must have pulled it. He had noticed that one of her hooves was slightly more "clubby" then the other. He told me to rest her for a month or two and it should be better. Well it didn't get better, so I brought her back in, and he told me honestly that he had no idea what it was. She now seems almost to be lame on the other leg, and I am at a loss. Any suggestions would be greatly appreciated!