Pearce discloses heart issue

"I have always transparent and honest about every part of my life," said Pearce on Instagram. "So I feel this deserves the same honesty. You guys know that I have been dealing with some health issues and through that, I have developed something called pericarditis, which is a heart issue."

Pericarditis is swelling and irritation of the thin, sac-like tissue surrounding the heart. The condition causes sharp chest pain.

"We have all decided that it is in my best interest as I'm healing to alter my shows a little bit. If my shows look a little bit different, know it's because I have to keep my heart rate under control a little bit," Pearce said without indicating specifics about how the show might change.

"I've been working with doctors and talking to my cardiologist," Pearce said. "I still want to be out on the road, it's really important to me but we have all decided that it is in my best interest as I'm healing to alter my shows a little bit."

Pearce urged fans t be careful about health issues. "I'm a young healthy person that really watches what I eat and exercises and this happened to me," she said. "So I just want to use my platform to tell you to take care of your body and listen to it and just know that if it's trying to tell you something it's gonna tell you."

Pearce's new album, "hummingbird," will be released on June 7.