so, I have two pet rats and they are my first ones. One of them (obi-wan) it's one month old and I notice that his testicles have grown and that sometimes they will be kind of swollen (really pink in collor). I read here that it's normal when it's hot. But where I live it's winter right now, so...

Hi, my rat's tongue has swollen quite a lot overnight and also turned blue/purple. She has been very sick recently and has barely eaten or drank anything. She has a tumor/bump on her stomach. She hardly ever moves and when she does, she usually falls over. I'm wondering if maybe she bit her...