wet

So ,my girlfriend gave me this guinea pig on November 2017 and since then i've been taking good care of him since he's my first pet. I always researched on the internet before doing anything to him ,from food to actions. And then today i looked at him and he had this brownish stain where his...

He tilts his head when he drinks water and gets his chest all soak and wet. I remember someone else said their pig tilts his head also. Is this normal? Our Vet rechecked his teeth and they look good and he is eating just fine.