It was a little over a year ago when Demi announced she was nonbinary, but just opened up about her own personal change on "The Spout Podcast" -- saying she now goes by the pronouns they/them/she/her.

Demi said, "Recently I've been feeling more feminine, and so I've adopted she/her again... But, I think what’s important is, like, nobody’s perfect. Everyone messes up pronouns at some point, and especially when people are learning, it’s just all about respect."

We're told Demi actually made the decision to include she/her back in April ... but this is the first time she's spoken about the change in depth.

Demi says last year she didn't necessarily feel like a woman or a man, when she was faced with a choice, like walking into a bathroom. Back then, she felt her masculine and feminine "energy" was balanced.