I think my Guinea Pig may be sick?

Your guinea pig is very ill and needs to see a vet asap. Get on th e phone and find out who is open today all the vets have one that covers for the weekend, it just means you may have to drive to a different city in your general area.I think your mom is right and when a guinea pig is that ill they must get on antibiotics at once or they will die.Guinea pigs are prey animals and will hide the fact they are ill until it gets to the acute stage, it is easy to miss the early onset signs of illness, however, once you see they are ill you MUST get them to an exotic vet asap.