need help with hognose....quick <please>

[Matt]

Im having a problem with my western hog.
He is very lethargic, not eating, not drinking and seems like he is just about to die.
I took him into the vet and they gave him a dehydrating fluid injection and some antibiotics.

But heres the thing. I keep finding these "things" in this enclosure. THey are little globs of white circles that are very mushy. They are homogeneous all the way through and Im 99% sure they arent alive. I have cut them open and they look like mashed potato all the way through, and they are not moving. I dont know where they are coming from, but his enclosure is spotless, and i figure he is probably deficating them....but they are all alone, they are not combined with al stool.

I took one of the globs to the vet and they had no idea what it was, so now im at a loss. Im trying to figure this out quick, cause i dont think he has too much time left.

Has anyone ever seen this before?
any suggestions as to what these things are?
...or what i should do in this situation?

thanks very much!