Hi, I have just come out of hospital, after having sever abdominal cramps, fever and discomfort when urinating, there werent sure at first what is was . . Overian cyst, kidney stone or kidney infection. In the end they said it was kidney infection, as there was blood in my urine. I forgot to mention to them that I had had food poisoning two weeks previous, could this be the cause of the kidney infection?
Blood in urine following diarrhea or other infection needs further evaluation. Common conditions are IGA nephropathy, post infectious glomeruli nephritis, hemolytic uremic syn Chat Doctor.  Consult nephrologist immediately. All the best. If you have any questions feel free to contact me.