I just started riding English a few weeks ago, so decided to use that saddle. When I tightened the girth, she pulled her lips back and swung her head at it. I thought it was because it was cold, so I let her stand in the stall for a few minutes.
I got on her outside and she wouldn't move forward. She did the same thing again, except as if she was biting at the girth. I thought she was just being dumb... so gave her a kick. She reared up a bit. Twice. Nothing that I can't handle, so do make a big deal out of that. I was in no mood to fool aroud with that at this point... at least in a saddle I was totally new to.
I took her back to the barn, plopped my rope saddle on her (to determine if it was the saddle), let that warm up, and got on. She got to bucking this time. It wasn't a forward buck, she wasn't stretching out it seemed. So, before she even stopped bucking, I hopped off, and got a halter and lead on her and "lunged" her, and once I attempted to get her in a trot, she reared up, higher this time, and bucked. I decided that she just wasn't feeling good and unsaddled her, but stood with her in the barn, she passed gas in the barn, and while she was bucking, and there was movement in her guts, so I ruled out colic for now, unless I see other warning signs.
So I just let her back into pasture and I'm keeping an eye on her as I go about chores and stuff, and if nothing comes up today, I guess I'll just have to try and ride her tomorrow. I'm guessing it's just a new idea from her little knieving mind to get out of being rode... but when she tried to bite at the saddle, girth, and that area, I got a little concerned.