My cat is 14 years old, and has been a normal cat all thoughout her life, she is loving. But she started to get a tumor on the side of her neck, that started out small and got larger and larger, and now it is huge, we took her to the vets and they said that it s not cancerous, but apparently we could take her to a place which is 2 hours away to get it surgically removed, the vet also said that this would be a 50/50 change or we living, we decided to leave it as she is quite happy and loving at the moment. But after a few years or so of having the tumor we put her into the Catary as we was on holiday, came back and she had changed, she is sleeping a lot, and as soon as she has had something to eat she will go straight back to bed, her right leg (the Tumor is on the right side of her leg) seems to not be normal like when putting her onto the floor her leg would slide, she is also limping, I don't know what to do at this stage and wether we should have gone ahead with the treatment