Sharon Osbourne's tears over her son Jack's MS diagnosis on The Talk earlier this week made for heartbreaking viewing.
But Jack has now insisted he is "fine", as he made an appearance on the US chat show on Wednesday.
The new dad - who revealed he was suffering from the disease on Monday - was upbeat and was laughing as he sat alongside his mum on the panel, joking: "You guys are acting like I have MS or something."
Opening up about the diagnosis, he told the show's other hosts: "I guess I've been having symptoms for the last three or four years, but I didn't realise it.
"I had problems with my bladder, problems with my stomach and then, about two years ago, my legs went numb for two months and I just thought I had pinched a nerve."
Jack, 26, learned of his illness just weeks after the birth of his daughter Pearl Clementine. He was found to have the incurable autoimmune disease after losing 60% of the vision in his right eye.
He has since regained 80% of the vision in the eye, but revealed how unpredictable his condition is.
"One minute you can be fine and the next, I went blind in my right eye. It's a completely unpredictable disease," he said.
He also admitted during the chat that being a father has helped take his mind of the diagnosis.
"It's been good because I haven't had time to be like, 'Oh, I have MS,' because I have to change diapers and stop the baby from crying."
After he appeared on the show, Jack took to Twitter to ask the media to not sensationalise his illness.
"Dear journalists...will you please stop sensationalizing my situation to sell ur poorly written magazines and papers. I AM NOT DYING!" he tweeted.