my pupppy's eye's Whites are bright red.it happen a couple days ago.he was playing with my other dogs and when i brought him back i notice he was limping.i started to worry so i started to check him. when i look at his eyes i noticed there was a little more red than usual. i thought it would go away.the next day he was still limping and his eyes were now bright red all over. i also notice that he he was not the energetic puppy i usual see.people keep on saying its nothing it will pass,but im starting to worry. he keeps slipping on the floor and whenever i have to put him in his cage i have to make sure his bed is in there so he wont slip. he going to the bathroom just fine though. im really starting to get worry.