I'm a little uncertain as to your actual diagnosis. It appears that you may not have an actual diagnosis. Your blood pressure is well under control so the diuretics you are taking appear to be working very well or you are taking them for a different reason.
You may be helped by seeing a nephrologist to better characterize your kidney issues.
Please feel free to post a follow up if we can be of more assistance to you.
Advice and opinions given are based on the information provided and must not be considered an official medical recommendation. The limitations of the internet prevent an appropriate evaluation. Always consult your doctor if there is concern.