Hi everyone, Today I had to euthanize my 7 year old guinea pig. Last week he had trouble walking so I took him to the vet. I was given medicine and critical care and he bounced right back. This morning I woke up to him having seizures and drove him straight to the vet. My heart completely shattered that he just kept seizing. The vet told me it was possible that he had a brain tumor and that I didn't really have any options because of his age. The vet also told me that further treatment wasn't very unlikely to help him. I can't believe that I had to let him go. I don't know how to deal with this. He was perfectly happy last week and I feel like I missed something. Is this normal? I know he was old but I just can't wrap my brain around this.