So you’ve joined the millions of travelers who are taking off this summer, headed for vacations, weddings, family reunions, conferences. And you flew to your destination.You arrive, you’re having a great time. Then you feel a little off. Your throat is scratchy. Maybe you start coughing. Or your head feels as if it is about to float off your body like a rogue balloon.Sigh. Time for a COVID test. The bad news: You’re positive!What do you do now? Where do you stay? Can you score some Paxlovid if you’re a good candidate for this or another anti-COVID drug? And the big question: When can you fly home? True confession: It happened to me. Here’s what I learned from the experience and from interviews afterward with COVID experts.