guinea pig advice

We were told this morning that Pip (nearly 6yo) has renal failure. He's very, very wet and his poop isn't normal. He's also quite swollen underneath at the back, but feels like he's losing weight, feeling quite bony down his back. He's still fairly lively, but he's always been the most sociable...

Today My guinea Patches, and her sister Callie had lap time. For Callie, it was regular. For her sister, it was her first. I do have a of question, though. When we picked up Patches and Callie, they both made this squeek/squeel sound like a real pig. Is that regular? At first we thought that...