I am fairly certain that I have a UTI; I am on a medication that has UTIs as a common side effect. I had a UTI a few weeks ago and the GP suggested 7 days of antibiotics due to my compromised immune system, although he said 5 days is sufficient for most people. I was sick to the back teeth of side effects, so finished after the 5th day. I suffer from repeated thrush that is severe (I have seen various GPs who agree that my thrush is indeed that bad) and antibiotics make it worse. Preventative treatment makes no difference and I require a week's worth of prescribed thrush treatment before it even begins to subside. I am very, very loathe to see the GP because I do not want to take another course of antibiotics. I just cannot go through this again.
What will happen if I leave a UTI untreated? Am I at extra risk due to my immune system problems?