From The Hindu:
The Doctors issued a chilli warning on 10th April 2018, after an American man who ate the world’s hottest pepper, "Carolina Reaper', at a contest was struck by excruciating “thunderclap” headaches.
The 34-year-old man’s symptoms began with dry heaves “immediately after participation in a hot pepper contest where he ate one Carolina Reaper”, in 2016, said an article published in medical journal BMJ Case Reports. The man then developed intense neck and head pain, and for several days experienced brief but intense “thunderclap” headaches. Each lasted several seconds.