A few weeks ago, I boarded a plane and headed out to sunny California for a wine tasting mini-break in Napa to celebrate a good friend’s forthcoming wedding. I’d been working some long hours and was happy for the opportunity to get away for a few days to relax, but I was worried that between my late hours and the stress of traveling, my rheumatoid arthritis might spy an opportunity to creep up and ruin a perfectly good vacation. I made sure I drank plenty of water, dosed myself with...