I did it! I did it! :)
To summarize the first weekly challenge: not as difficult as I suspected. The water did finally run down my throat and it seems like I´m always been drinking water (?!) I believe I even drank more than 8 glasses a day since I sometimes forgot to make a mark. Better safe than a cheat...
My stomach does feel a lot better when I drink water, I´m not more energetic though which I anticipated. I have to find something else that makes that happen.
I´m going to continue to drink water, but not as many as 8 glasses a day. I´m going to make it a habit of drinking a glass of water before meals, which makes it 3-5 glasses a day.