Brooklyn Deckeris opening up about her bout with severe mastitis.

In this week’s episode of PEOPLE’s podcastMe Becoming Mom, the actress recalls her experience with mastitis and how wearing an underwire bra may have caused the inflammation.

“What I didn’t realize until I had mastitis — eight months postpartum with a 104 fever, it was horrible — what I didn’t realize which I should’ve known is that underwire bras can cause mastitis and can affect milk production and all that,” says the 34-year-old, who is mom to son Hank, 6, and daughter Stevie, 4, with husbandAndy Roddick.

Decker, who has teamed up withBodily, a resource for all things women’s bodies and maternal health, says that at the time, she was shooting and “in production so [she] was wearing proper undergarments under costumes and they were like this late in the game that causes mastitis.”

Subscribe to our new 12-episode weekly podcast,Me Becoming Mom,to hear celebrity moms open up exclusively to PEOPLE about their extraordinary roads to motherhood.

“You have underwire sitting on a duct and it can turn badly,” she tells host Zoë Ruderman, Head of Digital at PEOPLE. “It was horribly painful. It was almost as if I was in a fever dream.”

Elsewhere in the episode, Decker speaks candidly about herdifficult postpartum recovery, which included bleeding nipples and blood clots.

“I remember when Hank was feeding once, and this was in the first week of being home with him, he pulled off my breast, and it was after a feeding, and he had blood dripping down his lip. I burst into tears because I’m like, ‘What have I done? What did I do to him? He’s gonna get sick,’ " she tells Ruderman.

The 12-episodeweeklyMe Becoming Mompodcastexplores the various roads to motherhood through different interviews with both celebrity guests and experts in the field. Topics on the show include IVF, adoption, surrogacy, single parenthood, same-sex couples, home births, pregnancy loss, unexpected and surprising birth stories, among other subjects.

Guests on the show include Allyson Felix,Hoda Kotb, Jillian Michaels, Shawn Johnson East and more.

source: people.com