for days, except water.. then you'll have significant sodium deficiency and one of the first things happening is vomiting back up the water you try to keep in your body.
So you'll last for about a day or so vomiting without resources in your body.
I 'm curious as to what happens next?
If you don't replenish your nutrients and just continue Do you just keep vomiting water back up for days or do you die, a very tedious death.