6-Month Foamy Urine. Current symptoms?

I am 35 years old, 52 kg, height 5'1". I have foamy urine for 6 months (thick, doesn't clear for ~2 min). July 2025 labs: eGFR 95, creatinine 0.9. BP 127/84 (1 month ago). Home dipstick negative for protein. No pitting edema or face swelling, but legs feel heavy/smooth, with leg pain and itching. Also increased thirst despite drinking water. History: PUJ obstruction, pyloplasty 15 years ago, no pain since. Iam attaching foam urine water taken at 12 am and urinated 7:42 and 7:44 am time stamps. Questions: 1) Could my foamy urine, leg heaviness, itching, mean kidney failure in my case? 2) Is my past PUJ surgery relevant to current symptoms? 3) I am fearing to go to the test if kidney failure is reversible for me