So, my rat Coco is 2 and 1/2 years old by this point, if not slightly more. She lives with two other younger rats, each about 1 1/4 years old. Recently her vision has seemed worse and she lost weight, but I figured that was part of her becoming old. Her hind legs I noticed were becoming weaker, but it was only recently I noticed they were struggling to support her weight. I was about to schedule a vet appointment but our nearby vets don't specialize or even really cater to rats in most cases, and Coco didn't seem to be in any distress. This morning around 6am, I noticed their water bottle had gone a day without releasing water but I rectified it as soon as I could. Once I got home from school though, which was around 8pm, I noticed a lot of blood throughout their cage. Coco herself was acting normal - curled up but came out to greet me when I arrived. I noticed to my horror that she had gotten even lighter than she had been before, barely any weight to her, and her left eye is cloudy. Her right eye is also slightly cloudy, and she seems to have lost vision in her left eye. We looked at her and the blood is coming from her genitals. I've had her out for a while, keeping track of her, making sure to feed her some honey, apple, and provide water as necessary but I am worried she won't make it through the night. She doesn't seem to be in pain or distressed at all - she's just sitting there chewing away the box I put her in, as always. Does anyone have any idea what is wrong with her, or anything I can do to make it easier for her? I'm worried it was something I did, but I have always tried to look after her. As old as she is I expected it to happen soon, just not so suddenly.