Similar thing happened on a cruise I was on Sunshine about 2 years ago. I noticed all the water in my shower was on one side, (I knew I wasn't that drunk! LOL) and we were leaning hard. Turns out same situation - medical emergency, we had to turn around to drop off a passenger.
Wife and I have cruised a lot, but that was a first for us. Several crew we talked to acted like it was nothing special, happens all the time...