Lena Dunham believes it's very difficult for a woman to really "win" in Hollywood, even in 2017.

Dunham has lost weight over the last few years and is now running into more critics, similar to those who previously criticized her weight in the past. After posting a lengthy Instagram caption about the issue, she appeared on The Ellen DeGeneres Show and discussed how frustrated she has become.

"I was frustrated by it, because it really was evidence that as a woman in Hollywood, you just can't win," Dunham told host Ellen DeGeneres. "It's just so crazy because I spent six years of my career being called things like 'bag of milk' on the internet, baby cow, aging cow."

The Girls star and creator is not exactly interested in pleasing people on the internet who criticize her weight, though.

"I also just never felt self-conscious about it," she admitted. "I was like, anyone who's going to take the time to say something negative about my weight on the internet I wasn't particularly keen to impress anyway."

Dunham discussed how she was criticized for slimming down when she has been such a strong advocate for body positivity in the past.

"Then I had this experience of my body changing and I had all these people being like, 'you're a hypocrite, I thought you were body-positive, I thought you embrace bodies of all sizes,'" she said. "And I was like, I do, I just understand that bodies change. We live a long time. Things happen. Andrew Rannells [co-star on 'Girls'] could get very fat, we don't know."

In her Instagram post, Dunham gave love to all of her followers who chose not to criticize her at any point for her weight or weight loss in general.

"So much love to all my web friends who demand that life be more than a daily weigh in, who know their merit has nothing to do with their size, who fight to be seen and heard and accepted," she wrote. "I love you."