When Norman Reedus suffered a concussion while filming the series finale of The Walking Dead in March, his publicist told EW he was recovering well but in a new interview he said the injury left him in fear for his life and was far worse than the public knew.

Oh dude, that was horrible, Reedus told EW . That whole ordeal for me personally was terrifying. I thought I was going to die.

Details about how the injury occurred have not been released.

Just like his survivalist Walking Dead character Daryl Dixon, Reedus knows how to forge ahead. The actor has endured his fair share of injuries across 11 seasons of the hit AMC show, which will end in November. He once fell off a motorcycle, for instance, and cut his hand on a prop.

On March 11, however, Reedus suffered a concussion so bad he had to be hospitalized for weeks. Details of the incident remained sparse and suggested Reedus was simply taking his time to recover. The actor himself, many of whose scenes were finished by a stand-in, now begs to differ.

It was very serious, Reedus told EW. It was scary. Ive been hit in the face and the head a million times. Ive gone through car windows, but that one rung my bell.