Many different personalities?

I find my horse has tons of different personalities, In the feild by herself she will chasse me around and follow everything i do, she is a sweet sweet horse, when shes out in morning turnout with the other mares, she will be boring and just sit there and eat her hay, if the other horses go run around she will go lay in the mud. When she is out with the 4 geldings and 2 other mares she will race the gelding ( and she kicks ***!) Shes very playful even if shes with them in the morning, around mares shes boring. When im doing dressage with her, she gets very bored and she will fake limp, or purpusly trip. When I leave her on the cross ties for 5 minuites she chews on the chains. When i jump her she is a nice forward mover but by no means hyper, As soon as she sees barrels/poles she just flyss, she knows her pole pattern by heart and i dont even have to guide her. around little kids shes a sweet heart an acts like a 30 year old lesson horse. If i give her jelly beans , she will always spit out the buttered popcorn ones, is your horse odd like mine?