My male guinea pig has noticeably gained some weight over the past week. He also looks bunched up.
His eye looks sort of crusty too, though it's hard to see in the photo. Also, it looks like saliva is dripping from his mouth. His chin is all wet and when he was eating lettuce (he is eating thank goodness) I could see green saliva dripping onto the fleece. I'm taking him to the vet tonight at 8. Does anyone know what this is? Help!