We have been on holiday for a week and took our 2 female guinea pigs to boarding, they were at the same place earlier on in the year for 3 nights this time it was 9 nights. We picked them up this morning and noticed they are both not themselves, one of them is a bit off but still eating and the other one has gone skinny and hardly eating, she took a few bites of cucumber whilst sat on me just now but she was chewing it really slowly. They haven't been excited and wheaking when we go upto their room either. Just wondered if anyone else has had anything similar to this? Not sure if she's depressed or if anythings happened while she was there and hopefully will pick up a bit now she's back home.