I have a soeness in my left side that pains at times I have swollen ankles . I urinate often but I drink lotsof water. My creatin number is 1.15 and my gGFR number is 57. it was 51 but has increased.My creatin was 1.36. The test I've taken show that myleftkidney is slightly larger than the right. My bp is slightly elevated eventhough I am on meds. ????? What is going on ?My dr.says there'snothing to be concerned about. But as I research I am concerned.