Watch the video to see Harry, mid-concert, looking like he's experience some kind of discomfort in his chest. He carried on with the show so it appeared everything was okay, though there's also footage of him flubbing a note, so maybe he really wasn't feeling well?
As for the hospital rumors, nothing has been confirmed and Harry has been spotted out and about in LA, so it seems if he was having any health issues, everything is a-okay now.
We're guessing it was just the latest Harry rumor, but feel better Harry!
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