As said, UTI aren't a big deal but if not treated they can get dangerous. I went to the ER over a month ago, having a panic attack and thinking it was a heart attack. When they took my urine sample it came back that I had an infection. I didn't notice at all since I had no burning, no pain, no problems peeing..
I had to go through two weeks of antibiotics because the first round was resistant. I remember worrying my infection had gotten worse and my kidneys were gonna fail, but 3 weeks ago I went go to the doctor for my body pains and he took another sample which came back fine.
I've read most females get a UTI at least once in their life. It's easy to get and relatively easy to cure. Just drink lots of cranberry juice, preferably pure.