India, Sept. 12 -- President Donald Trump has again sparked worries about his health after he and First Lady Melania Trump attended a 9/11 event. Videos of the event, and screengrabs circulating on social media show a 'droop' in Trump's face, to one side.

This comes after worries over the bruise on Trump's hand, and the recent US Open visit, where a photograph showed Trump taking some kind of a blue pill.

Several people online speculated that the face 'droop' could be from a stroke. Face drooping or twisting is consistent with strokes and the American Stroke Association notes "During a stroke, blood flow to different parts of the brain can stop. If blood flow to the left side of the brain is compromised, the right side of the person's f...