@jellaO I’m sorry you have been experiencing the symptoms you describe and that you have an incurable kidney disease. The symptoms you describe are typical of diabetes but a one time sweets indiscretion is not likely to cause diabetes. However, you are wise to be concerned since you already know that you are prediabetic, have a family history of diabetes and your last glucose tests were a bit high. Diabetes and high blood pressure are two of the most common causes of kidney problems. I would get it checked out if I were you. If there’s a problem, the sooner you find out the sooner you can start taking care of it and protecting your kidneys.