5 days into water fast

Hello

I am on day 5 of water only fasting
I feel tired and somewhat dizzy very forgetful ( lost my parked car, left my Cell Phone in car on & on) I am waiting for the day when all this energy is suppose to come alive?
I do have extreme heartburn off and on. Interestingly, a warning comes. Hiccups first, then heartburn At night its horrible. I did cheat and bought Acid smoothie from enzymedica all natural Vegan enzymes it helps I took it 2X to rid myself of heartburn

prior to the water fast, I was on bone broth, protein shakes, excerising with vitamins for 5 days ..probably in ketosis prior to Water Fasting . This was ok an tolerable Tweet