Credit: Adam Taylor/ABC; Jon Kopaloff/FilmMagic

You better believe Cher is a worrying mama!

The 65-year-old icon's son Chaz Bono danced through his injuries on Monday night's Dancing with the Stars. But while Bono, 42, kept smiling throughout his quickstep routine, his mom was majorly stressing about her son's wellbeing!

"[My mom] was stressed [Monday night] to say the least!" Lacey Schwimmer's partner told Us Weekly Tuesday night in L.A. "She called me up and she's sending her doctors to help. She's just trying to be as supportive as possible." 

So how exactly did Bono hurt himself? "There's a step here that's very easy to miss, and several times I've landed on it," he explained. "That, combined with dancing every day... It's a lot of pounding!" 

But the author-activist is hoping his weight loss will lessen the burden on his joints. "I'm down -- I think -- about 12 pounds now," he told Us.

"His pants are falling off!" Schwimmer, 23, chimed in.

"They are," Bono laughed. 

Fortunately for the duo, next week's dance is simple. "We have the rumba," Schwimmer explained. "So it's slow. It's pretty easy and we are going to try and work around [Chaz's injuries] as much as we can."