Mrs. Trump's decision not to go to Quebec is a departure from past year, when she made an worldwide summit debut at the G7 meeting in Italy and followed up at the forum of G20 industrialized and developing nations in Germany.
Then, on May 14, the 48-year-old was hospitalized for a benign kidney condition for which she required an embolization procedure and spent the following week recovering. As the worldwide media couldn't stop speculating about her whereabouts, she took to Twitter to quash rumours about her health and marriage.
The first lady also dashed off a tweet.
Where in the world is Melania Trump?
A CNBC reporter tweeted last week: 'Not that this will deter the conspiracy theorists, but I saw the First Lady walking with her aides in the West Wing yesterday afternoon'. "They're probably just reminding her how to play well with others".
In addition to the Gold Star families event, the White House is set to hold a Ramadan dinner this week. "Rest assured, I'm here at the @WhiteHouse w my family, feeling great, & working hard on behalf of children & the American people!" wrote the First Lady.
After weeks without public appearances or statements, the first lady tweeted this week to respond to questions about her whereabouts and suggesting the "media is working overtime". However, Trump is apparently doing well, if her latest tweets are to be believed.
But she remained in the hospital until May 19, with Grisham telling CNN that she was "in high spirits".