"My gut isn't working properly, my skin is worse than ever, I've gotten sick half a dozen times."
Lorde also opened up about the correlation between her changing relationship with her body and listening when it needs help.
"I realized earlier this year that listening to my body is hard for me, it's something I never really learned how to do," continued the singer.
"I've been trying to teach myself that this year, but it's been hard actually, pretty confronting, has made me fully aware of all the times I ignored it or didn't give it what it needed, shamed it for a fight or flight response, took a handful of pills and pushed through."
Lorde also opened up about "living with heartbreak again."
"It's different but the same," said Lorde, who has been with music producer Justin Warren since 2016.
"I ache all the time, I forget why and then remember," she said. "I'm not trying to hide from the pain, I understand now that pain isn't something to hide from, that there's actually great beauty in moving with it. But sometimes I'm sick of being with myself."
Despite this heartbreak, Lorde is "excited for" her future.
"I know I'm gonna look back on this year with fondness and a bit of awe, knowing it was the year that locked everything into place, the year that transitioned me from my childhood working decade to the one that comes next."
"One that even through all this, I'm so excited for," concluded Lorde. "It's just hard when you're in it."