Hey,
So, I will be taking them to a vet today
I have also started to put both of them on a scale and noticed that Aimee has been gaining more weight than my other piggie.
About food, I give them 2 types of vegetables every day, and I try to vary as much as possible. I also give them the food you buy in pet stores (I dont know the proper name in English) and they also have plenty of fresh water.
I don't know if I should give some type of vitamins or not...
About the sex, yes I am sure they are both females, we have checked many times and I have asked other people who know more about guinea pigs to have a look as well.
Thanks for the answers so far