No matter what age, young or old, if your horse is looking restless and uncomfortable in any way call the vet.
Time is of the essence and can mean the difference between the horse surviving or not.
Horses cannot vomit so any pain in the tum can be serious.
Unfortunately sometimes these things happen in the middle of the night and nothing can be done. Your horse is fine when you check before going to bed but in can be a different story in the morning as happened to me today.
My Excites yearling colt was fine and cheeky last night but this morning he was writhing in pain and could not be saved
How many top stallions have been lost to colic? Only a few weeks ago High Chapparral was another top stallion lost.