Docs keep saying i'm dehydrated, but i drink 1/2 gallon water per day, pee 12 times at least a day. i don't know what else to do? egfr 57 bun/cre norm

Dehydration?: If your BUN and creatinine are normal, it is very, very unlikely you have dehydration. If your egfr is 57 ml/min, it is unlikely that your have a normal BUN and creatinine, as you chronic kidney disease stage 3. Why don't you ask the physician (p) who ordered the blood work on you that gave you a egfr of 57 what is going on? That p knows you better than anyone else. Good luck.