1) Get an early morning urine albumin-creatinine ratio (ACR) — normal is under 30 mg/g; if it is 30-300 it means early diabetic kidney disease and changes your treatment. Repeat it twice over 3 months before concluding, since exercise, fever or high sugar can transiently raise it. 2) Alongside: serum creatinine with eGFR, HbA1c, fasting lipid profile, and a repeat urine routine with microscopy. Since you have fatty liver, also LFT. 3) Keep the targets tight — HbA1c under 7%, BP under 130/80. If your ACR is even mildly raised, ask your physician about an ACE inhibitor or ARB (e.g. telmisartan/ramipril) for the blood pressure, and about an SGLT2 inhibitor (dapagliflozin/empagliflozin) — these two classes specifically protect the kidney and also help the fatty liver. 4) Practical measure for the foam itself: drink 2.5-3 litres of water spread through the day and see whether the foam disappears; if it vanishes with hydration and there is no protein, it is benign. Also check whether your toilet has cleaner/detergent in the bowl. 5) Reduce salt to under 5 g/day, avoid protein supplements and NSAID painkillers, walk 30-40 minutes daily, and aim for gradual weight loss for the fatty liver. 6) Repeat kidney monitoring at least once a year — or 3-6 monthly if ACR is abnormal. Please feel free to consult me on Practo with all your reports (including the old 24-hour protein and the nephrologist's notes) so I can compare them side by side and tell you what genuinely needs action, or visit me at Synergy Multispeciality Hospital, Miraj, if you are able to travel.

Word of caution: see a doctor promptly if the foam becomes persistent and does not clear with hydration, or if you develop puffiness around the eyes in the morning, swelling of the feet, reduced or frothy dark urine, blood in urine, burning while passing urine with fever, unexplained breathlessness, or a rising creatinine. Avoid painkillers such as ibuprofen/diclofenac, unproven herbal or ayurvedic "kidney" remedies and high-dose protein powders — these are common causes of avoidable kidney injury in diabetics.