I found an abandoned kitten 2 weeks ago that I have been fostering. She has been growing rapidly, eating steadily, and developing in every way. Yesterday, though, I noticed a small amount of puss on her vagina. Today, I noticed a little more puss but this time there was a little blood. She also has been urinating without stimulation... alot. I make her use the bathroom all the time, before and after meals, and I use tissue as not to irritate her skin. I think she is about 3 weeks old but I have never known a kitten to go to the bathroom independently this young. Could this be a bladder infection??