Callie has a UTI

I noticed on the way home Saturday, that Callie would pee several times during one stop. I didn't think much about it because it was a long ride back home. Back at home, she would go outside, come in and pee again - several times. Some little piddle spots, some bigger. I thought this might be a training issue, so I worked on praising her really well when she went outside. She would come right back inside and urinate upstairs - several times. What alarmed me was when I found blood in her urine a few times and I knew it had to be a UTI. We went to the vet where they did a urinalysis and a sonogram. After it was confirmed she had a UTI, she was put on antibiotics for two weeks. She doesn't seemed phased at all and continues to play and play with Bella.