The water intoxication is how you have defined it - I couldn't remember the details, other than I knew someone who would drink water until he had real dangerous problems. His care giver told me he could die. I have heart problems, and have some scarring, but my cardio man won't call it a heart attack - but I'm at risk and have been for years. Cognitive impairment - is an issue with my meds already. Once your health is compromised, it can't be made right again. 'Tis a quandary. It would be great not to deal with so much pain.