After working Majic today I noticed that he had some watery looking blood dripping out of one nostril. Some of it was brown and some of it was red. I did work him for about 45 minutes in the round pen, it wasn't hot or dry today and he is fit enough to easily take this kind of work. He did just get his shots on monday, I heard that one of them (strangles maybe?) was done as a nasal mist this year. Could this just be a side effect or should I get him checked out?