Hundreds of people commented on a post by Haydn Thomson thanking the more than 5,000 members of his support group.
It is the first time the teen had taken to the social networking site since he was run over in May.
After weeks in a critical condition the 19-year-old is now making progress although updates from his mum, Gayna Cutts, warn his rehabilitation could take up to a year.
In what she wrote would be one of her last posts on the site, Gayna thanked people for their support and praised her son’s fight.
To follow Haydn’s progree join the Haydn Thomson Support Page on Facebook.