Donald Trump
US President Donald Trump takes a drink of water as he speaks about his administration's National Security StrategyMANDEL NGAN/AFP/Getty Images

If US President Donald Trump did not already have enough to worry about with the Robert Mueller case and allegations of sexual misconduct made by over a dozen women, here comes more. Trump may end up spending the holiday season fending off dementia concerns.

On Monday, December 18, Trump unveiled his new national security strategy Washington, D.C. and while this should have been routine for the US president, Twitter went on a meltdown when he was seen taking a sip of water with two hands like a small child. Numerous users suggested that Trump may be battling dementia and going back to child-like ways.

Dementia is a brain disease that is known to affect one's ability to think and remember, problems with language, as well as, slow movements.

While some just raised questions on why Trump was using both his hands to lift the glass and drink water, some were quick to conclude that he is showing signs of dementia, even calling the glass his "president sippy cup." Twitter user Sandra F Woodward wrote: Trump "holds that water glass like my 3-year-old grandson holds his cup! I really think Trump has dementia and is reverting 2 childhood action," and another added: "The way he is grabbing that glass shows Trump has dementia. His motor skills are degenerating."

Donald Trump
U.S. President Donald Trump takes a drink of water while speaking in the Diplomatic Room of the White House in Washington, U.S., November 15, 2017.Reuters

However, this is not the first time that Trump's weird way of drinking water has raised a few questions. In November, the US president was seen awkwardly sipping water from a Fiji water bottle during a press conference at the White House, reported the Daily Mail. But dementia rumours hit the roof after his Israel policy speech just a few days ago, when he was heard slurring his words.

At the end of the speech, Trump's slur was evident as he said: "God bless the United Shhtates. Thank you very much-sh."

Considering Trump's health became a hot topic of discussion, White House spokesman Raj Shah said that the president had "dry mouth," and that is why the words came out the way they did.

"His throat was dry. There's nothing to it," Shah told the Los Angeles Times. "I know what you're getting at. I'm saying there's nothing to it." The same was later revealed by White House press secretary Sarah Sanders, who also called the questions and rumours on Trump's health "pretty ridiculous."

But speculation is a gift that keeps on giving and with these concerns refusing to die down, a doctor who specializes in brain injury medicine wrote in an article that Trump could suffer from a "degenerative brain disorder" and that he should get himself tested.

"I see worrisome symptoms that fall into three main categories: problems with language and executive function; problems with social cognition and behavior; and problems with memory, attention, and concentration," Dr. Ford Vox wrote on medical news site STAT.

"It's time to discuss these issues in a clinical context...even if the president has a physical exam early next year and releases the records, as announced by the White House, what he really needs is thorough cognitive testing," he added.

While Vox did agree that there isn't much evidence, he said Trump should get tested as a precautionary measure. These concerns have also been raised as Trump's late father Fred Trump died after battling Alzheimer's disease for six years.