Fear not, friends... rumors of my demise are greatly exaggerated!
I did find occasion to test the kombucha theory under appropriate conditions and found that there indeed seemed to be a quick and noticeable reduction in that annoying lightheaded feeling after consuming approximately 12 oz. of homemade kombucha.
However, since correlation does not prove causation, I will have to repeat the experiment with consistent results to say for sure that it is an effective remedy.
I will try to make a more timely follow-up!