We recently put one of two horses down that were rescued together. Both were in a small pen together for maybe 10 years. Both in poor health, skin and bones. So needless to say they were very close and since we put the one down the remaining one is stressing. He is calling , and pacing. The vet is on stand by and already said I can call her anytime if he needs her. I'm watching him closely, taking extra time to brush and take him for long walks. I am giving him treats like apples and carrots more then normal. He has gained weight and got a clean bill of health. I do not want him to take a step backwards. He's older but right one looks less then half his age! He looks great and is the biggest sweetie. Is there anything else I can do to help him thru this ? Vet said to give him. Special treat but is that enough?