My guinea pig has unfortunately developed some sort of tumour on her bum that is steadily increasing in size The vet estimates that she has approximately one more month to live. She then proceeded to tell me that the tumour does not really seem to be bothering her at all - in other words, it is not causing her pain. I would agree with the vet because she still eats and drinks the same amount, albeit with less energy than before. She also still squeaks when she smells me bringing her treats. However, the vet prescribed a painkiller for my piggy at the end of our appointment, despite making it clear that the tumour was not causing pain! So, should I administer this med? I don't want Matcha to spend her last days drugged up, especially since it has to be syringe fed, which she isn't too keen on...