Thank you for the info. I will check those out shortly. The symptoms I have now are much like what I had with Lyme disease. Dizziness, weakness, headaches, nausea, fatigue and blurred vision. But I just have an overall ill feeling and no appetite at all. I think my doctor is also looking at liver function. My potassium has dropped to the normal range but the filter rate is still low. My carbon dioxide and creatinine are still within range but have gone up. I take synthroid, amlodipine and nexium for thyroid, bp and GERD. I take aredia by iv once a month for osteoporosis. Thank you so much for your help. The possibility of kidney disease came as a complete surprise to me and concerns me more than my other issues.