I have been watching Lex very closely lately and I am starting to fear that he may have some issues with his hips. I first started to notice when I would throw the ball for him, he runs to catch it and then then turns back round to bring it back to me. Right after he turns it almost looks like he does skip? Maybe I'm not sure. Then tonight DH threw the ball for him, we were standing outside and he threw it up a hill Lex went after it, caught it then limped around looking very confused. DH and I ran to him and he just lay down. I walked him around a bit and he seemed to be uncomfortable. I tried stretching his back legs and on both sides he was very tense, more his left. I am really worried, maybe its just nothing? We do exercise him a lot swimming, running, jumping - maybe we just need to cut back on it? Well I guess I was just looking for advice. Thanks for any comments. I really hope its nothing =(