I've traumatized him enough for now, so I'm going to let the water I got down his gullet cycle through and repeat the process in an hour or so. I don't think what I'm doing until I get him to the vet is going to hurt him and it may help even if I'm wrong about the impaction. I've never heard anything about a guinea pig getting too much water. More to come later.
- And got the T-shirt
You can soak his bottom in warm water and gently manipulate the sac to loosen it up. The take a q-tip dipped in oil or water and scoop the rest of it out. There can be quite a bit packed in, and it may take a while to remove it. You can flip the sac open with your fingers to make it easier to see and get to the poop.
Also, if you dig out some of the cecal poop (soft, green, smelly), offer it to him to eat. It helps with digestion, and the longer he goes without the stuff the worse his pooping situation will be.
In the middle of writing this post, the vet called and said that his anal area is pretty gnarly but they couldn't find large amounts of impacted feces in there. She couldn't feel any masses in his belly either. It looks like he has bowel irritation going on. It could be something he ate. There's no way to tell really. They're going to clean out his anal area and we're going to do critical care and mineral oil for now and see how he does. They'll reevaluate him next week after this dietary treatment.
The good thing is that he is eating some and passing poop on his own. His eyes, nose and ears are clear. His weight is good for now but it's only been a day and a half since his decline in eating. The critical care and mineral oil should keep his weight up and make it easier to get his bowels moving properly again.
I'm going to try and get more critical care into him tonight than I did during the day because I am not comfortable with the amount he took in during the day. The feeling I got between the critical care and the rest of the nibbling he did wasn't enough food for him. I'm also going to leave some lettuce and maybe a cucumber in with him overnight in case he decides to eat on his own. Of course there'll be plenty of hay in there as usual. It'll be clean because I changed his cage bedding today.
I was looking at the packaging for the timothy hay cubes I got for the piggies and noticed that there's alfalfa in them. He also had cilantro the other day. I wonder if one of those things which he doesn't normally get could have caused this.
Come to think of it, I should have been posting this on the medical thread. I will do that from now on. I will quote the posts to it from here so the record is complete.