quick update. I don't care how many times you do it, shooting drops of saline up a baby's nose until he seems like he is choking and drowning is not natural. But, as directed, it worked. After what seemed like pouring a liter or two of saline to clear his nostrils over the course of a day, Kaden's nose started clearing up. And once we found out about this amazing gas-killing juice (thanks Gen!), Kaden slept very well last night. I'm pretty sure he was just as exhausted as we were from not sleeping for two nights (& days) straight.
The positive of all that being sick was that he seemed to have finally gotten desperate enough to use the pacifier again. Although, he does now know the difference and clearly eschews the little faux nipple for the real thing when he's actually hungry.