Amy Schumer has hyperemesis gravidarum, or severe morning sickness, the same thing Princess Kate battled during her three pregnancies


Amy Schumer is thrilled to be pregnant with her first child, but she isn’t loving the severe morning sickness that landed her in the hospital.

The actress and comedian, 37, was forced to cancel her the Dallas stop on her standup tour yesterday, explaining to fans that she has hyperemesis gravidarum, the same pregnancy side effect that Kate Middleton battled with all three of her children.

“I am in the hospital. I’m fine. Baby’s fine but everyone who says the 2nd trimester is better is not telling the full story,” Schumer posted on Instagram on Thursday. “I’ve been even more ill this trimester. I have hyperemesis and it blows,” she admitted. “Very lucky to be pregnant but this is some bulls—! Sending so much love to the doctors and nurses taking great care of me and [my dog] Tati! They are cool as hell!”

The condition, known as HG, left Kate hospitalized for four days, and is characterized by debilitating nausea and vomiting that severely inhibits a woman’s ability to eat or drink and results in significant weight loss. Affecting up to 2 percent of all pregnant women, it can start as early as five weeks into pregnancy and endure for weeks or even months. Schumer/Instagram
Credit: Amy Schumer/Instagram

The condition typically comes on suddenly.

“It’s the body reaction to the pregnancy hormone,” Dr. Dagni Rajasingam, spokesperson for the Royal College of Obstetricians, previously told PEOPLE. “Some women who are very sensitive to it can start feeling nauseated early on in pregnancy and it will provoke them to take the test.”

Treatment options include IVs for fluids and, in at least 20 percent of cases, feeding tubes for nutrition. Anti-nausea medications commonly used for chemotherapy patients are often prescribed off-label for women suffering with HG, but “it’s certainly not a cure,” Dr. Marlena Fejzo, a UCLA professor of research and leading expert on HG, previously told PEOPLE. Nor is there extensive research examining the potential effects of such medications on women and their babies.

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Although the cause is unknown, a family history of HG raises a woman’s risk. Women carrying multiples are also more likely to develop HG, as are women carrying girls. “The leading theory is that the cause is hormonal,” Dr. Fejzo said. “Obviously when you’re carrying twins those hormones are higher, so if you have a problem processing those hormones then you’re more likely to feel worse.”

Among the complications of HG for the mother: post-traumatic stress resulting “from the severe, prolonged nausea at a time when you know you’re supposed to give your baby nutrients and you just can’t,” said Dr. Fejzo, who lost a baby to HG in 1999. “It’s hell for these women — like going through a war.” For the baby, complications can include fetal death, an increase in pre-term birth and low-birth weight.

Dr. Fejzo and others said that they hope that the princess’s struggle will shed a light on the disease to help boost research and funding for better treatment options. “It’s a horrible condition,” says Sarah Rosen, a Chicago-area mom who suffered from HG during her first pregnancy, “but at least maybe this will draw some attention to it.”

For more information on HG, visit