Tom  convinced me to call the doctor, 

who just called me back and put our minds at ease.  

Dr. Turner said I could go in to the office if I want to ('someone' is there until noon) but he thinks it's either an inner ear thing caused by allergies/congestion or pressure changes, or a viral thing that will run its course in a few days and disappear as quickly as it appeared.

And we get to see Lisa (and Chas?) for lunch tomorrow; they're in town this weekend to see Jeff off to Harvard for grad school.  

She did text "We should probably schedule a late-ish lunch 

since plans for tonight may include significant quantities of booze." <g>