Chris Kamara said he suffers from apraxia of speech after raising concern with an appearance on Soccer Saturday.
The Sky Sports presenter and former footballer, 64, appeared to slur his words while on screen this weekend, prompting viewers to message him on social media.
Kamara said on Twitter that she developed the speech disorder along with an existing thyroid problem.
He wrote: “Just wanted to let some of you know that I got tweeted today that I’m fine.
“In addition to my thyroid problem, I developed apraxia of speech and have been working on getting my speech back to normal.
“Some days it can be a bit slow and other days it’s normal. Hopefully I can beat this!”
Kamara’s Soccer Saturday co-host Jeff Stelling responded, “@chris_kammy, you still bring life, energy, fun and understanding to all of your Soccer Saturday reporting.
“We all love you friend. Keep going!”
Olympic gold medalist Sam Quek and former soccer player Viv Anderson were also among those who sent messages of support.
Kamara previously underwent a brain scan to check if she was developing dementia after suffering from what she described as “brain fog”.
He was concerned that the disease might be related to heading the ball as a footballer.
However, his symptoms were explained by an underactive thyroid, for which he is now receiving treatment.
In addition to his careers in the field and on the small screen, Kamara is also a singer who has released two Christmas albums and a charity single.