From the very beginning of the first presidential debate, many viewers began worrying about Donald Trump's sinuses.

As the Republican nominee delivered his opening statements and began laying out his merits for finding a new way to boost jobs, he began to audibly sniff in between many talking points.

Perhaps because of Hillary Clinton's recent bout of pneumonia, many on Twitter expressed concern about Trump's health. And some might have been a little less than authentic in their worry.

Trump sniff is the new Gore sigh #debatenight pic.twitter.com/yndIplaWRs — Matt Wilstein (@TheMattWilstein) September 27, 2016

THAT'S CALLED BUSINESS, BY THE WAY *sniff* *gulp* *sniff* — joe mande (@JoeMande) September 27, 2016

"China *sniff* mexico *sniff* small loan *sniff*"

-Donald Trump#debatenight — Troy Osinoff (@yo) September 27, 2016

Trump has the sniffles. Is he okay? What's going on with his health? Can he serve? — Michael Ian Black (@michaelianblack) September 27, 2016

SNL is going to go to town on Trump's sniffles #debate2016 — Luke Russert (@LukeRussert) September 27, 2016

Donald Trump has a cold. — katie rosman (@katierosman) September 27, 2016

Either Trump has a cold, or he did a big fat line of blow before he came on stage. — Nick Bilton (@nickbilton) September 27, 2016

I THINK TRUMP HAS A COLD. HE'S NOT FIT TO LEAD. CODE RED. #debatenight — (((Michael))) (@Home_Halfway) September 27, 2016

Even former presidential campaigners had something to say about Trump's nasal interjections.

Notice Trump sniffing all the time. Coke user? — Howard Dean (@GovHowardDean) September 27, 2016





BONUS: Can you find Doc Brown in this sea of Bernie Sanders?