Well, the visit to the doctor produced good and less good news...My blood test results showed my kidneys to be normal. So the blood-pressure tablets I was put on a few months ago don't seem to be affecting me adversely. These tablets can put your kidneys at risk, especially if you suffer from diabetes, as I do.
Less welcome news was that my finger pains are probably due to arthritis. The lady doctor who checked me out said that there's not a lot you can do about it, other than try 'Voltarol' gel, (a pain reliever and anti-inflammatory.) I explained it was a particular worry for me