To those who fast on water: when does the bad breath usually go away?

bad breath
Maria asked:

On what day does the bad breath go away? In my experience it went completely away only after returning to food again. What about you?
And also the first day my heart started to hurt a lot while it usually doesn’t, the second day it was less and now it has almost stopped hurting. Anybody had such, any ideas why is this happening? I thought that meant that my heart was not really strong even if it didn’t hurt while normal life.
The other question is about the quantity of water that can be consumed.. it’s just that in just 2 days I have drank like 15 or more liters of water. Well, I just drink every time I want but isn’t it crazy to drink that much?
Thank you,

Rapid Cure for Bad Breath