Can a guinea pig have allergies?

Answer 1

Yes they can. Many times they are allergic to their bedding because of the collection of dust. I would try new bedding and until you can get to the store put some paper towel at the bottom of their house. This way they are sitting on something they aren't allergic to.

Answer 2

Yes because just like outdoor Allergies people have different reactions and head aches are one of the symptoms

Answer 3

no.