I wondered if anyone else has ever noticed white liquid coming from a guinea pigs eyes? It only happens when my g.pig is straining to reach the back of himself to clean himself. His eyes are otherwise fine , not sticky or runny and don't seem to bother him at all but when he strains to clean himself or strains to get out of the bath his eyes sort of stretch and a white liquid comes out of the corners. Anyone else ever had this? I'm confused as to what it is. Hope someone on here can help