Speaking on Jameela Jamil‘s  “I Weigh” podcast, the “Big Little Lies” star, 44, confessed to not always having it all together.

“I’ve definitely had a lot of not sane moments in my life,” she said laughingly. “I’ve had a lot of crying on the kitchen floor and my kids putting their stuffed animals on me going, ‘It’s going to be OK mom.’”

“I definitely had anxiety, my anxiety manifests as depression so I would get really depressed. My brain is like a hamster on a wheel and it won’t come off, I’ve been managing it my entire life,” she explained.

The actress and producer — who shares daughter Ava, 20, and son Deacon, 16, with ex-husband Ryan Phillippe also has a son, Tennessee, 7, with husband Jim Toth — revealed that her anxiety spiked post-birth.

“I’ve had three kids and after each child, I had a different experience. One kid, I had mild postpartum and one kid I had severe postpartum where I had to take pretty heavy medication because I just wasn’t thinking straight at all and then I had one kid where I had no postpartum at all,” she said.

Witherspoon added that she had a particularly difficult time following the birth of her daughter, Ava.

“I was 23 years old when I had my first baby and nobody explained to me that when you wean a baby, your hormones go into the toilet,” she confessed. “I felt more depressed than I’d ever felt in my whole life. It was scary.”

Witherspoon notes that she has been in therapy for most of her life.

“I’ve had so much therapy which has been really great,” she said. “I think I was 16 when I started.”