You can still die, just not from hunger/thirst.
And you have to hide it, or else governments around the world are gonna lock you to a blacksite and experiment on you. (I mean, you are essentially a weird mutant / supernatual being, governments be paranoid)
If you’re interested in that storyline, check out NSA by Andreas Eschbach. I’m afraid that one might only be available in German.
I am extremely uninterested in reading the future!
Also more importantly I can only count to four in German. So I suspect I might struggle with the book.