It wasn’t too long ago that Amy Schumer and her husband, Chris Fischer announced that they are expecting their first child together. Unfortunately, it seems like the comedian is having a not-so-easy pregnancy. The Trainwreck star has recently been hospitalized for a condition called hyperemesis gravidarum, known as HG, which is treatable, but not curable to date. What is hyperemesis gravidarum, and what are its symptoms? Scroll through to get all the details on the illness that forced the actress to cancel her recent shows.