"It takes you a while. You feel off. You don't feel like yourself," Panettiere told Good Morning America's Lara Spencer on Thursday about her experience. "But you know, women are so resilient and that's the incredible thing about them. I think I'm all the stronger for it. I think I'm a better mom because of it, because you never take that connection for granted."
These days, the Nashville actress says she's feeling great and happy to be back on the set of her hit show, now airing on CMT.
"I'm feeling fabulous," she said with a smile. "I'm so glad to be back playing Juliette, everything that she's been through ... she made me stronger."
Panettiere later talked about her character on the show also suffering from postpartum depression.
"It helped me identify and let women know that it's OK to ask for help, and that it's OK to have a moment of weakness, and it doesn't make you a bad person -- it doesn't make you a bad mother," she stressed. "It makes you a very strong, resilient woman. You got to let it make you stronger."
"I've gotten an incredible amount of support and I was actually really surprised because I feel like I grew up in this industry that, in my mind, was very judgmental," she said. "I didn't even look at social media. Then, when I looked, people were like, 'Oh my gosh, good for you,' and I am so proud to be a spokesperson and a woman that people can look to, and to know that they're not alone and they're not weak if they go and they seek help."