The new TB has a hitch in his giddy-up this week. Definitely lame in his rear left!! Grrr. I only notice it at the trot on the lunge and it goes away after he is warmed up. Not present when moving in straight line. So I am thinking arthritis, but the v-e-t is coming out on Monday to check.
Hoping its not the "n" word..you know, starts with "n" and rhymes with "avicular." Scary.