I just noticed this the other day - My horse holds his tail off to the left side, mostly after cantering, but I see him sort of hold it off to the side when he steps to the side or bends. It sort of reminds me of when a mare is in heat, but he's a gelding. Unfortunatly I have no pictures to show you, but i'll try to describe what he looks -- He holds his tail up, away from the body, with the bend starting right where the tail meets the body. Hopefully you guys can picture this!
Anyway, I have the saddle fitter coming out sometime next week, just incase the saddle is causing him discomfort, or is creating some pressure points that may be causing pain. I am also thinking about getting a message therapist out, but if this sounds like something a chiropractor should get involved in i'd rather spend my money on that.
So, what do you guys think?