JP and Ashley Rosenbaum speak after health scare in exclusive interview

The "Bachelorette" alums revealed J.P.’s scary diagnosis with Guillain-Barre syndrome last month.
2:58 | 01/14/20

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Transcript for JP and Ashley Rosenbaum speak after health scare in exclusive interview
An exclusive interview with bachelorette alums J.P. And Ashley Rosenbaum speaking out about j.p.'s struggle with a rare immune disorder. Adrienne Bankert is here with the story. Hey, Adrienne. Reporter: Good morning. Yes, that rare condition when someone's immune system starts attacking their nervous system is exactly what happened to J.P., though when it did, he had no idea what was wrong. Ash Loy, would you marry me? Yes. Reporter: From happily ever after to health crisis, one of the most beloved couples of bachelor nation, J.P. And Ashley Rosenbaum are this morning opening up about their harrowing experience with guillain-barre syndrome. It your honor it had the couple's whole world upside down. J.P. Paralyzed by the rare illness that often follows a viral infection. He complained to me, high hands feel a little weird. By the end of the day we had picked up a pizza for the weekend -- it was a Friday. And he -- he couldn't carry the Reporter: His strength gone. At times he could not stand or You know, walking was hard. I couldn't put on socks -- I couldn't get dressed. I got in the shower. He couldn't open up the bathroom doorknob. Guillain-barre syndrome. Still not sure that's how you pronounce it. Reporter: Breaking it on his Instagram story. Feeling powerless to his kids. I can't hug my kid, pick up my kids. Do anything for my kids. I don't want my kids to see me like this. I just burst into tears because I was scared and frustrated -- About I have to tell you when he burst into tears -- I've never seen him cry, never. Reporter: He fell to the ground multiple times unable to move in front of his son. What did your son do when that happened. I think he was a little scared in his room. He hasn't brought it up since. Reporter: Doctors told the rosenbaums they thankfully caught it early enough. With treatment and physical therapy he's past his most difficult hurdles. It's really about sickness and health. Definitely. It's never that obvious until you're in sickness and realize what the potential like catastrophic effect it could have on a relationship, on a family. On an individual. J.P. Is still going through five days of physical therapy every week and though this is really hard the two say this has brought them closer together. Ashley does admit with a sense of humor she did not believe J.P. Was sick at first. She was like, okay, yeah, whatever, it's man flu. If you feel worse go to the hospital tomorrow. I mean she really was just like, sure, like every married woman in America knows what I feel like. But she didn't just feel better, he felt extremely worse so she said she's so glad they listened. Oh, my gosh. When men say they're sick, they're sick. In this case for sure, yeah.

This transcript has been automatically generated and may not be 100% accurate.

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