It was a bad weekend for comedian Heather McDonald.

Fox News reported that the 51-year-old McDonald fainted and fractured her skull during a standup routine on Saturday night. 

What happened?

McDonald was in Tempe, Arizona, over the weekend where she was supposed to perform two shows at a theater called “The Improv.” The shows were back-to-back, with one on Friday night and the other on Saturday night. McDonald made it through her routine on Friday night, but not the one on the following night.

Those who were in attendance say that McDonald told a joke about coronavirus vaccines before falling to the floor.

“I’m vaxxed, double vaxxed, boosted … and flu shot and shingle shot and haven’t gotten COVID and Jesus loves me most,” she said.

TMZ reports:

As soon as she delivered the joke, she just collapsed and hit her head on the floor. Everyone thought at first it was all part of the act, but it was not. She was conscious, but clearly, all was not well. An EMT and a nurse happened to be in the audience … they rushed up on stage to provide first aid.

In the meantime, 911 was called. An ambulance arrived on the scene, and it took McDonald to the hospital.

“I fell on my eye”

While in the emergency room, McDonald took to Instagram to address the situation.

“So, I’m in the emergency room. I look weird,” she said. “Oh my God, I’m so, so, so, so sorry.”

She explained:

I got up, I did one joke, and I felt so dizzy. You can see my eye, I fell on my eye. Oh my God, I cannot believe this happened, I feel so terrible that they had to tell everyone to leave and then cancel the second show.

“I’ve never, ever fainted in my life,” she added.

We still do not know what exactly led to McDonald’s fall. Reports indicate that she tested negative for the coronavirus and that she did not consume any alcohol prior to the show. McDonald’s representatives have told at least one outlet that she “may have lost consciousness because of dehydration.”