Little hiccup in life

So got call on Thur Dad on way to ER, not responsive. Long ride to hosp to find him slightly more responsive ,but not recognizing us . Got admitted to ICU ? stroke. Several long day later he is finally staying awake and think he knows us , not so sure. He then decides to take a walk down the hall and falls , luckily not hurt. Seems to be a un-diagnosed blood sugar issue and that will require some life long habit changes .... not going to be positive, but there are worst things that could have bee the issue.