Country singer Loretta Lynn has rescheduled two upcoming shows on her tour due to “exhaustion,” she announced via a representative on Tuesday.

The 81-year-old, who hails from the coalfielders of Kentucky, postponed two shows in Iowa after completing the Canadian leg of her 2013 tour. In a statement posted on Facebook, a rep described the Canadian shows as “grueling,” writing, “Lynn started feeling poorly midway through her three week tour.  Loretta is a pro and wants to give her fans the best show possible. She felt she Physically was unable to do that.”

The statement continued: “Lynn is taking some much needed time off and being treated for exhaustion, she hopes that everyone will understand and is Rescheduling both shows.”

The last time Lynn had to postpone performances was in 2012, when she rescheduled two shows due to a knee replacement surgery, the Daily News reported. However, earlier in the month she complained about being under the weather. She was also hospitalized for pneumonia in 2011, after she awoke on her tour bus and complained of difficulty breathing.

According to the Penticton Western News’ review of Lynn’s performance at the South Okanagan Events Centre last week, “the Queen of Country” at one point apologized to the audience for having a cold. The apology reportedly came after she stumbled on the lyrics of her song “Blue Kentucky Girl,” explaining that she had a slight cold, which prompted members of her band to joke that they would later be auctioning her tissues on eBay.

Lynn’s website indicates that she will have a two-week reprieve until her next performance in North Tonawanda, NY. She also has scheduled performances in the days immediately following that, in Pennsylvania and West Virginia.

Lynn’s current tour celebrates the anniversary of 50 years in the music business. Her band, The Coal Miners, have been playing with the music legend for over three decades. As Lynn says, "If you're lookin' at me, you're lookin' at country."