In a recent interview, Slipknot's Corey Taylor says he believes that a fall at Ozzfest in 1999 is to blame for his spinal injury. (via Team Rock)

“I fell four feet and I landed on top of my head, and I think that is what did it,” Taylor tells Sex Pistols guitarist Steve Jones on his radio show Jonesy's Jukebox. “You're 24 and you don't even process that. You're like, ‘Woah, whatever. I'm too metal for pain.’” Watch the interview in full below.

Read more: Slipknot postpone tour dates after Corey Taylor receives “unplanned” spinal surgery

The injuries he sustained called for an emergency surgery back in June that delayed the band's tour by three weeks. “He [the doctor] told me, 'I've seen MMA fighters that don't have it this bad. I can't believe you're walking,'” Taylor says. “They jacked my vertebrae up, they put a replacement disc in, they shaved the bone back and I still have a gnarly bruise on my spinal cord.”

Before surgery, Taylor says it was clear that something was wrong. “It was affecting my body. I had no strength on the left side of my body. My balance was completely off. I was getting electric shocks all throughout my body,” Taylor says.

At this point, the doctor's have told him that he's about “75 percent” through recovery, and he's expected to see full recovery in a year.

Check out the interview in full below.

Watch more: Rewind to the 2015 APMAs with Corey Taylor of Slipknot