By Amber Goodhand - Breaking Celebrity News Reporter

Michael Lohan collapsed during an Alcoholic's Anonymous meeting on Tuesday and was taken to the hospital, Breaking Celebrity News has exclusively learned.

"Michael started to feel light headed during his meeting so he walked outside, and that's when he collapsed," a source close to the Lohan patriarch told Breaking Celebrity News.

"He was taken in an ambulance to Palm Beach Gardens Hospital where doctors found another blood clot in his lung."

The source said that Michael was given medication to break down the clot and the 51-year-old was given CAT scans and an MRI to make sure the clot hadn't spread to his brain.

Since Michael's October arrest when he tried to flee police by jumping out a third-story window because he'd violated a restraining order put in place after his ex-girlfriend Kate Major cried domestic violence, he's been in a 120-day court appointed rehab stint in Florida -- and in and out of the hospital.