burge
I did that blackout without passing out on Day 12. I was on a warm crowded train. I got off, the cool air revived me. But, yeah, I was worried. And like you, potassium was my main concern.
I realize the people here are mostly hard core, but if you feel you have to juice some spinach, kale, carrot, tomato or even a banana. Being strict on the
Water Fast is not worth teh risk of your life. Your BP and heart rate/beat can be affected.