I was going to ride him in first level for dressage at the next show because I know he can do all parts of the test, but I just don't want to fight him for impulsion through the whole test! I think it is affecting why I cannot get him to improve on his spins in reining (he will not put the energy in). He really feels heavier than ever on the bit lately too.
He is six years old, has always been laid back/mellow/calm. Also, he shows plenty of animation when in his pen anytime he gets excited about other horses. He has been cutting his canines for the last couple of months. He is the kind of horse I believe who will not act out or show signs of injury or pain...but keep in mind that this lethargy has been a part of his ways for his entire riding career so far minus a few chunks of time (mostly winter/spring).
Is there something wrong with him? Is it just the way he is? Is there something I can do about it?