When I pulled his rug off yesterday I noticed he was very sunken in at his flanks like he hadn't been drinking. Now this is the horse who choked a few days ago so has been getting his feeds as soup so I know he has been getting some water, although maybe not as much as he needs.
So I gave him the once over and noticed that his eyes were a bit dull and his anus is really sunken in, like what you would see on an emaciated horse. My first thought was dehydration.
This morning his flanks are filled in again, his eyes are brighter, but his anus is still sunken in. The only other time I have seen it like that was after he colicked last year and was sick for 5 days.
My gut is telling me I need to have him looked at by a vet, but am hoping that you guys might be able to give me some advice and ideas to avoid that if possible. I will absolutely call the vet if necessary, but if I can resolve it at home that would be ideal.
This is him yesterday after I pulled his rug off, he was a bit sweaty on the shoulders.