I had surgery for a ureter stone 8 months ago. After the operation, I developed a bacterial infection. The bacteria were resistant to almost all antibiotics, so I had to take high-dose antibiotics twice. The infection eventually got cured, but since then I have been noticing foam in my urine for about 6 months. My creatinine level came back as 1.27 and my eGFR is 76. I also experience chest pain and have lost a lot of weight. Before the operation my weight was 59 kg, but now it is 52 kg. I had a morning second urine ACR test done, and it came within the normal range. I also feel stressed and anxious, especially after seeing the foam in my urine. I feel very weak, and my hemoglobin has also decreased slightly — it was previously 14.5, and now it is 12.4.