Blood test 3 months ago and previous tests show that my kidney and liver arent functioning normally but my Doctor tells me that I shouldn't worry. I feel that my a lot different that when I was in 2002. I will be 47 this year. I feel pain on my heel when I am standing up for long periods and it can be worse sometime. I sometimes have back pain too. I suspect these changes are linked to my kidney or liver. I drink alot of water - 2x 1.5 litre per day and urine colour is still yellow which is unusual. I can tire and stress easily and feel things are changing with my health. Your views would be appreciated.