My horse swishes his tail a lot. When I'm tacking up, getting on (sometimes), and some things under saddle, mainly backing up. I know this sounds like pain, and it very well may be. He was checked by a chiro back in December, and he had no back soreness, a little soreness on one side of his neck, and a little over his pelvis. Was checked again a few weeks ago, and same results. The vet told me to do carrot stretches with him everyday to keep his neck supple, as one side tends to get sore. But with all the swishing and sometimes the pinned ears I thought for sure he'd have all kinds of back trouble, but none (along his spine anyway.) This is not an excuse, or maybe not even a reason, but he is kind of the grouchy type. I've noticed this tail swishing for a long time but never really thought too much of it, but the other day my dad pointed out him swishing his tail at the back up and it hit me-what's going on? So, does anyone have any ideas? Do you think pain or annoyance? Is there any possible way that it's nothing, just 'him?'