Rose, I'm not trying to alarm you. Just watch her. Also hay is more important then the grain. It's better to give more hay then more grain. Grain can pack up in them and cause colic. Hay is actually more natural for horses then grain. Feeding grain is a man made habit, and is harder for them to digest and pass without the help of the right amount of hay.
Becky
alarming me is good. I just want her to be ok. Any advice you all give is great. Im going down now to take the grain away. It may be that she has a little bit of colic, or is tired. She is sluggish and not herself. She normally talks to us and is happy. Not this morning.
We dont know enough sadly, but if things look worse I have a wonderful vet who would be here in a jiffy.