I have a 6 year old male neutered cat named Pita, and lately there has been pee in his urine. It happened earlier this week and I thought it was a fluke thing, then it happened again last night and today. In all other respects he seems healthy, his appetite is good, he's been drinking plenty of water, he's active, he doesn't seem to be in any pain... He seems fine, except for the blood. It's only a little bit, but I'm worried. I'm going to call the vet tomorrow so I can get him in immediately. Does anyone know what's wrong?