Prior to kidney transplant I had the same type of cramping you've described. I would wake up with excruciating cramps in my calves or feet, just terrible! The next day my legs would ache like they were bruised. I tried eating more bananas to get my potassium up but never had great results. Sorry to hear it's happening. If you find a solution please share it with the whole community.

I also had my worst cramping in my hands. I couldn't hold cutlery or even a pen. It was really debilitating.