Halsey says 'body is rebelling' against her as she reveals poor health:.

Halsey has said she is dealing with a number of health issues, in a revealing update on Instagram. Wearing a heart monitor, the singer posted on her Instagram Story saying she'd recently been "hospitalised for anaphylaxis a few times". "My health has changed a lot since I got pregnant and gave birth. I started getting really sick, I've been kind of sick most of my adult life." But the 27-year-old is still "excited and confident" for her next tour...