"So what they are having me reference to is an acknowledgement of a stroke, but there are two stroke messages," Henry tells Zolciak and her husband, Kroy Biermann, in the clip. "One is a stroke that an individual suffers and then passes away. The other is an incident in which someone has a close call involving a stroke, or something like a stroke, but they actually live and survive through this."
"I'm seeing a susceptibility to what looks like blood clots," Henry reveals to a visibly shaken Zolciak.
"That would be me," the Don't Be Tardy star replies. "I had a stroke Sept. 23 of 2015 from a blood clot. I was flying from L.A. back home to Atlanta from Dancing With the Stars."
"I went down to hug my son as soon as I pulled into my driveway, and then my hand started to go numb, but it was numb times a gazillion, not the normal shake it off," she recalls. "Then I couldn't speak and I was trying to, and it was so scary."
The reality star later reflects on her "life changing" stroke, wondering if she's in danger of suffering another one.
"The stroke was life changing -- literally. I never thought at 37 I would have a stroke, and in front of my children nonetheless," she says. "I've pretty much fully recovered, but I can't say that I don't think, ‘Could this happen again?'"
Hollywood Medium With Tyler Henry airs Wednesday at 9 p.m. ET/PT on E!