things like chocolate & most human food can make your guinea pig sick.
be sure to feed them only guinea pig food & timothy hay, and of course healthy snacks like a piece of cucumber,carrot, apple or lettuce.
No, guinea pigs should not eat human food.
Yes.
no they can't it will make them sick.
yes, Guinea pigs make low noises to tell that she/he feels sick
They can be. Its best if you get guinea pigs at a shelter.
maybe because he/she is lonely or it's sick
Of course you can give guinea pigs grass. In the wild, that's what guinea pigs grow up eating. Make sure though that the grass does not have any chemicals or anything else on it that could make the Guinea Pig sick.
Maybe. I would ask your vet.
Most vets will take guinea pigs. Look in your phone book.
Take them to a vet.
no they do not make guinea pigs fat !
They can be feeling sick but to my knowlegde they cannot be physically sick. hope this is useful to you!