Hi have a 3 and half year old mare which I have had since October. She has been fine. I lunged, longreined her and she cracked that. Then I broke her to walk,trot and canter when ridden and she has been fine with that. Within the last 3 weeks she has been a moody mare. When I am riding her in walk she is fine. Then I ask her to trot her ears go flat back, head in the air and she tries and kicks out. It is a nightmare to get her going. Once I have got her going she keeps trying to stop. everytime I squeeze her on she throws her head up and just tries to nap and using the whip she ignores it. We had a new saddle that fits fine because we fault it was that but now I think it is something else. is it because it's coming into march and shes coming into season. She has had a few geldings on her or could it be something else. She was alright a little while ago pleae help!!!