What is Halsey’s chronic illness?

Now the young star has revealed, according to the Daily Mail, that she suffers from near-debilitating endometriosis, which is a condition where tissue similar to the lining of the womb starts to grow in other places such as the ovaries and fallopian tubes.

What autoimmune illness does Halsey have?

After being misdiagnosed (multiple times) and being labeled by doctors as a big baby about [her] period, Halsey was recently diagnosed with endometriosis, a disease that causes inflammation outside of the uterus and thus pelvic pain, fatigue, nausea, and potentially infertility.