Most of the time, working out leaves you feeling better: calmer, fitter, healthier. But then there are the ugly parts. Do you remember the great Norwegian runner Grete Waitz who was plagued with a case of the runs during the London Marathon—and kept running to eventually win the race? That’s not the only nasty side effect of exercise, though. These five problems—while common—are also treatable. Here’s what to do what trouble strikes.
Clean up even the nastiest of exercise dilemmas with these expert-backed solutions.