He had been digging in that area with his mouth so much and had yet to remove it himself, so I went ahead and cleaned it with mineral oil and a q-tip. Afterwards, I put him in his cage and he just laid around in shelters. It has been ~ 4 days now and he still is just laying in his house, not coming out for food. I had to take him out of the cage and put a full head of lettuce in front of him then walk a little ways away to get him to eat it.
Now, he just won't leave the house. If i put food by the house or in it, he eats, he occasionally will get water in the middle of the night whenever i'm in bed. Whenever I hold him now, he screams like i'm killing him. He usually loves cuddle time, but now he acts like he is scared to death. He seems very lethargic. Do you think he is sick and I need to take him back to the vet again or is he just traumatized from getting the boar gland cleaned out? I usually clean his anal sac once a month, so it was nothing new, but this time he seems off and its been several days since.
I have noticed the female pig (Koto) seems to be taking control of the cage and chattering and moving him around whenever he is in certain locations. Could she be forcing him to stay in the house?
You need to be weighing daily, perhaps hand feeding, and yes, see a vet asap if he is hiding and lethargic. This is a clear sign something is wrong.
Is he neutered or is she spayed? Pregnancies are dangerous.
I would take Naoki back to the vet, just to be on the safe side.
The dark green stuff sounds to me like it was the cecal poop that was in there for a long time. So 2 things he's in pain and hasn't been eating the cecal poop he needs. The female may be chasing him away from hers. That's just a guess, I'm not a GP shrink :)