dehydration

Not another thread from me complaining about my ongoing thirst, frequent urination and dehydration....but at this point I am certain my general symptoms are caused by low blood volume or some for of autonomic dysfunction that causes fluid loss and low blood volume. Call my condition M.E./CFS or...

I don't know exactly how much I should drink so am sticking with 12 cups of water a day (very thirsty and peeing a lot) from hyper POTS/mild hyperaldosteronism. But I have been getting muscle aches/cramps (more like muscle pulling sensation) behind my knees lately. I had my sodium and potassium...