One of our guinea pigs has been off some foods for a couple of weeks. He is no longer interested in cucumber and carrots etc but seems to eat other food.
I have just noticed a large lump under his chin. Its not that easy to notice with his tufty fur but is actually quite big.
He is about 4 years old so very old for a g-p.
I can't afford unnecessary vet bills.
Any ideas what it could be?? Could is just be him coming to the end of his life or should I get to the vets??
I am not callous but he is an old guinea pig and I cannot justify huge bills that will not result in much improvement.