“I had a hospital scare after a show in Seattle a couple months ago,” Handler told E! News. “I had this cardiomyopathy, which means, like, an adrenaline shot to the heart.”

https://www.self.com/story/chelsea-handler-cardiomyopathy-stress

This all seems to be timed after her likely booster dose. It happened the same week that her friend/employee Heather MacDonald collapsed on stage mid joke (just 3 weeks after her booster). Talk about a sign from heaven. If people can't see it now, would anything wake them up?