Jim Irsay Says He's 'On The Mend' After Suffering Health Issues

Jim Irsay says he's getting over his recent health issues ... revealing Tuesday he's officially "on the mend."

The Indianapolis Colts owner suffered multiple medical scares in the last few months -- including a suspected overdose at his Indiana home followed by a respiratory ailment -- but, thankfully, he said on his X page he's now doing better.

He told his fans he appreciated all of their support as he went through his recovery process ... writing, "Grateful for all the messages of love."

The Colts first announced 64-year-old Irsay was struggling with his health back on Jan. 9 ... when they said he was battling "a severe respiratory illness." The issue was so dire, it actually forced Irsay to back out of a concert with his band.

To make matters worse for the NFL owner, TMZ Sports learned that just weeks prior -- on Dec. 8 -- cops were called to his Carmel home after they said he had been found unconscious with a blue skin tone.

In police documents, cops said first responders administered live-saving measures before taking him to the hospital ... classifying the incident as both an "overdose" and "overdose/poisoning."