Not feeling 100%

Normally, Blaze is not a 'lay down' horse. Rarely does he ever actually lay down and stay down. Once in awhile he gets down and rolls on his back but gets right back up. Today he spent a lot of time laying in his stall (a rarity). He also laid all the way down with his head on the ground this morning and stayed that way for some time. I had Greg check on him--I was too scared. But, he popped his head up and got up to eat some oats from Colby. So, I would say he is not feeling the best, but that is to be expected....