I am afraid to say that Cherry is lame. Luckily you have caught it early and there is still time. The lameness is in the back left leg. It doesn't seem as bad as it could have gotten but It still need to be treated as soon as possible. I can do a neurectomy which is the surgery that will remove pain. I do need your permission to go through with this surgery and I will have to do it in another appointment. I can completely say that I think that in this case lameness came complexly out of the blue and there is nothing you could've done to stop this. Until I can do a neurectomy Just keep cherry on box rest. This will be 8GE but I feel horrible I can lower it to 7GE