Today I noticed that my horse, an eight year old appendix QH gelding, kept stretching out as thought he was about to pee.
I went out to bring him inside and he was laying down. He got up normally and I brought him in. The first thing he did was pee. I began to brush him and noticed that he went back into the stretch. I didn't think much of it and continued. He then kept stretching out in the same fashion. Otherwise, he was acting completely normal, as calm and quiet as could be.
It puzzled me and I decided to walk him around for a while to make sure that he was passing stool normally (as he'll usually poop after being inside and being walked around at all, or after I get on him to ride) and he was, and there as definitely moisture in it. There were no other obvious signs of an upset stomach, and as I said, he was acting normally. As I continued to brush him, he showed no signs of irritability with me touching anywhere on his body, either.
I decided to tack him up as normal, and he behaved normally, no discomfort when I tightened the cinch. I then brought him into the arena and before I got on, eased my weight onto him before I sat in the saddle, to see if maybe his back was causing him pain. He stood normally and patiently, and didn't mind me getting on at all. We walked and jogged, and he was riding normally as well. Overall, he was acting happy. He stretched once or twice under saddle, after I had asked for a halt.
I checked his gums and pinched his skin, no issues there. I had also checked over his legs and feet, and everything was as normal.
What really puzzled me is that my friend brought in one of her horses, who is turned out with my gelding, (an OTTB mare) and noticed that she was stretching out often as well and in a similar manner, which leads me to believe that it's less likely to be an issue with his back, legs, or feet. I had considered kidney issues, however, I did see him pee as I stated earlier, and it was a normal amount and he showed no signs of discomfort whilst doing so.
My farrier is coming soon and I'll definitely ask him to look over his legs and feet thoroughly, in case he's having any issues there, and won't hesitate to get the vet out. I'm just puzzled. Any ideas?