You can actually be allergic to exercise
Some people have a real excuse to skip the gym.
By Nicole Wetsman September 11, 2017
runner
In some people, exercise can trigger an allergy attack.
Joe O’Leary went to dinner with his parents at around 8 p.m. one Wednesday in March of 2015. He split a pizza, topped with tomatoes and peppers, with his mom. Then he set out for the gym and hopped on the elliptical. But about a half-hour into the workout, he started feeling weird. “My eyes were watering, I was having trouble breathing,” he says. “In another five minutes I was struggling to breathe. I looked behind me into the mirror, and my eyes were swollen—every part of my face was swollen.”
http://www.popsci.com/you-can-actually-be-allergic-to-exercise