The roots/nerve endings of your teeth go up into your sinuses. I had a really bad toothache I went to the dentist for a few weeks ago and he couldn't find anything. Asked if I had been having sinus problems lately. Sure enough...
So, the second we stepped off the cruise boat last week, Junior puked. She puked several more times over the course of 6 hours, fell asleep, woke up totally fine. I was not so lucky. Thursday I caught the worst stomach bug I ever had. I puked twice an hour, every hour, out both ends, from 5 am to 4 pm. The butt pukes lasted another day and a half. I have NEVER puked so violently in my life, and now have a Clockwork Orange style aversion to chicken soup as the result of it. Then, as that was all winding down, I've come down with the cold and a suspected sinus infection which Mrs. Supe came down with the last day on board.
I think I'm done with cruises for a while.