(CNN) -- Events in North Korea have left the world wondering: Where's leader Kim Jong Un and is he still running perhaps the most isolated country on Earth? Some analysts speculate Kim may have been ousted by an old guard from the era of his late father, whose 2011 death put the son in power. First, Kim Jong Un gained a lot of weight. Then he developed a limp. Now the 31-year-old leader has been out of the public eye since September 3, during which he missed an important state meeting and, more recently, a meeting Tuesday to mark the 17th anniversary of his father's election as general secretary of the Workers' Party.
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Kim's monthlong absence from public provokes speculation on whether he's been ousted
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Other analysts say he's simply ill but is still orchestrating a North visit to South
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Official North Korean media acknowledges Kim is "suffering from discomfort"
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North Korea's deputy ambassador to U.N. declines to address Kim's health
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