My paint shakes her head when I ride her. Like something bother her ears and she tries to chase away the flies from her head. She doesn't look annoyed by my riding or anything and somehow she mostly does it at walk (not so much at trot).
I suspect something is wrong with bridle, but can't figure out what. She's fine about bit, doesn't chew on it or anything (it's a very mild eggbutt french link), the length of the bridle and overall setup is fine (I checked with trainer last Fall when I was taking lessons). I have nice (expensive :) ) leather western bridle, very light, with browband.
The trainer I talked to said she just picked up the bad habit, but my concert is she does it only with bridle on, so something is wrong.
I was thinking about trying a different bridle with one ear and no throatlatch (spell?) Does it make any sense? Any other ideas?
BTW, her teeth are fine and were done last month, and she does NOT like sidepulls and hackamores (no pressure on nose), so it's not an option.