Well as someone said, in the article I read they forgot to mention that for those two weeks they gave her pills and stuff that took the pain away from the effects of starvation/dehydration. Who knows if it's credible tho. But I mean, the original unbearable pain was still there and could not be soothed with any medicine, so even if she didnt feel the effects of starvation/dehydration, she still had to suffer two more weeks with the original illness. Pretty sure the starvation/dehydration made that pain a lot worse too.
Ya from what i have read they are put on plenty of meds so they don't feel the dehydration. Its not the same as if you are in a desert without water.