Hello. I had the same problem. My character is thirsty the whole time. I had big luck and found something to drink but no matter how much I drunk I was thirsty again over and over. Did that 4-5 times and still the same status.

The bug happens after a short while of playing. It reproduces everytime I play.
I try to explain it in steps.
1 I scavanged (Which is really hard at the moment) This took lets say a bit over an hour.
2 I got lucky and found some rotten fruit and something to sterelize it. (Nice idea btw^^) Because I was hungry I ate 1 of them.
3 Directly I got hungry again.
4 I found something to drink the half of an hour and a few houses later. Finally. I drunk dat water. Still thirsty. So I drank the soda I found too. Still thirsty.

Later the day I encountered a similiar situation. I hope may help you.

Bye