On November 28, 2019, HyunA posted a letter on Instagram opening up about her health. She revealed that, in 2016, she was diagnosed with depression and panic disorder and that she didn't believe it for a year. She revealed that she currently regularly gets treatment for it every two weeks. After experiencing fogginess of vision and collapsing, she thought it was a symptom of her panic disorder and ignored it. However, after seeing a university doctor, she received a brain wave test where she was diagnosed with vasovagal syncope. She ends the letter by thanking the people for reading her letter and stating that she will love and take care of herself.
2007: Wonder Girls
2009–2010: 4minute and solo debut
2011–2017: Trouble Maker and Triple H
2018: Departure from Cube Entertainment
2019: New agency
On January 27, 2019, she and her partner, DAWN, signed with PSY's new agency, P Nation. On October 18, PSY posted a photo of the couple on his Instagram account, saying that the singles of both were finished. On October 29, eleven teaser photos of "Flower Shower", her first release under the new agency, were released.