Alan Jackson reveals degenerative illness that’s affected his performing No Comments Uncategorized Alan Jackson has gone public with an illness he says has been affecting him for years. Alan Jackson has gone public with an illness he says has been affecting him for years. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to print (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on WhatsApp (Opens in new window)