I've had my new gelding for about two months now, he is relatively healthy exept he needs to put on weight.(he's a rescue) He is utd on vaccines, worming, dental care. This morning i was wasing him on the cross ties and i noticed that every couple minutes when he would take a deep breath a loud rattling would be let out, it is not every breath. I thought maybe his halter was setting too low on his nose so i moved it up but he kept doing it. The weird part is he would tilt his head to the left and pull on the cross ties. I looked up his nostrils with a flashlight, no redness, no dirt, no drainage. He was not coughing or struggling to breathe. He stopped once i put him back in his stall. I will go and check on him this evening, if he doesn't improve i will call the vet. I live in Florida and we just had a nasty spell of cold and rain, but it's warm now.