Donald Trump tweeted Sunday about a bizarre incident following his West Point graduation speech, where the U.S. President waddled as he slowly walked down a ramp.

Trump argued on Twitter that the ramp was "very long and steep, had no handrail" and "was very slippery" and he did not want to "'fall' for the Fake News to have fun with."

But some wondered on social media whether the strange walk could be a sign of deteriorating health of the overweight leader.