Tumor, blindness and lack of coordination, female

Question
Hi there - I only just stumbled upon this site, and it may be too late for me to do anything now BUT everything is worth a try: I currently house two female rats (between 1 1/2 - 2 years each) (they do NOT share a cage) and one, about a week or so ago, has been having some problems. We first noticed she was moving slowly, but thought she might have hurt herself (we let them run around the house quite a lot). Then, I found what I assume to be a hard mammary lump, which I think is growing and has almost reached the circumference of a quarter, on the left side of her tummy by her leg. Then I noticed she was having trouble with her "fine motor skills" - she couldn't clean herself properly (though she still tries!), and now it has become so severe that she can only eat baby food because she cannot hold her food, and it looks as if she can't properly grab food in her mouth.

In addition to all of this, she is, what I presume, blind. As in, is not aware when I wave my hand in front of her face and only saves herself from smacking into walls by her whiskers. She is lethargic and sleeps a lot now. She used to be very active. The strangest symptom is that she has a sometimes-slightly-green and always darkish yellow discharge coming from her birth canal, sometimes blocking it up (because she can't clean it out on time?). And her eyes are gunking that red stuff like crazy, but she's always had the respiratory problems, so that's nothing new.

And, unfortunately, since she was a "rescue rat" her pedigree is pet-store quality. That's all the information I can think of right now!

Do you have any idea what could be wrote with her (We call her Arabella :) 'Bellabutton for short)? I don't want to put her down, but I think I'll have to if she doesn't start getting better by Friday.

Thank you very much.  

Answer
I apologize for my slow response. I had a funeral to attend to this week and completely forgot about putting myself on vacation here!

I think Arabella may have more than just one problem - sounds like several hitting all at once. I'd guess her problem is probably cancer, and it may be wide spread. The discharge from her vaginal area indicates a lower tract infection, as usually a yellow discharge is a tell-tale sign of a uterus 'out of place'. If it smells foul, that is definitely an infection. The lose of motorskills, blindness and lethargy may all be related to a tumor or something similar in the head. Really, there's not a lot you can do other than try to keep her comfortable -- and if you have the money, a vet. I'm so sorry she's not doing well. I wish I could help more.