Lena Dunham is unflinchingly honest about her ongoing struggle with crippling endometriosis. She's documented every hospital stay, every setback and victory, every moment along the path to beating the disease.

Just a few weeks ago, she thought she had won.

But, as Dunham and every other woman who has ever fought back against endo knows, the disease is hard to get on top of. After an incident at the Met Gala, she was back in hospital again.

A post shared by Lena Dunham (@lenadunham) on May 11, 2017 at 1:06pm PDT

Since then, Dunham has struggled with "the greatest amount of physical pain that I have ever experienced." She has now decided to cancel the cross-country live tour for her newsletter, Lenny, because she can't give 100 percent.

Dunham made the announcement in a post on the Lenny website earlier today.

She writes:

"I've always been open with you all about the challenges I've been dealt with my health, even when it's scary and embarrassing, even when it makes me feel weak or less than.

"So I'm not going to stop now, even though part of me really wants to, cuz enough is enough. My body, which I've worked through all kinds of pain for many years, just doesn't have what it takes to do this tour…

"After being told I was endometriosis-free after my last procedure, more disease was found in deeper spots that required immediate surgery and now physical therapy.

"This disease is wily and unrelenting, and I'm really blessed to have a community, both online and IRL, who let me express how hard that is.

"Inspired by you, I'm gonna say 'Eff you' to embarrassment and walk the walk of a woman who really takes care of herself. My goals have to be simplified for this moment: to write and to heal."

Lenny had partnered with charities for the tour, and Dunham said she would be making personal donations to all of them in lieu of the tour.

She also said all tickets will be refunded, but that the tour would hopefully be rescheduled to another time.

"We hope to be back when my uterus has taken a chill pill. (But not my spiritual uterus. She'll never chill. She's incapable of chill.)"

All the best for a speedy recovery, Lena.