My dad had a kidney stone. It completely took him out of commission and I've never seen him in that state. Drink water people those things are no joke. Heart goes out to you sensei.
holy shit poor author, I can personally relate to that, kidney stones are HELL especially when you don't know what they are, still remember screaming in pain at fucking 2am back in November last year (didn't help that it also took me a whole fuckin week bearing that pain and hospital hopping until I even found out what it was properly, talk about a hellish week)
Always heard about how much it hurts to make one go through your tubes to... y'know... "expulse" it. I'm just glad I've never had to deal with that yet. <- This is water, not alcohol.