Korn frontman Jonathan Davis was dealing with a form of schizophrenia at the height of his mental health troubles.

The rocker has been open about his past struggles with depression and anxiety, and he has now revealed that in the 1990s, he was also suffering from panic attacks and a form of schizophrenia.

The condition causes symptoms such as hallucinations and delusions, and Davis, 44, admits it was a scary time in his life because he became convinced the people around him were trying to poison his food.

In a video made for the You Rock Foundation, a charity which helps sufferers of depression, Davis says, "It was the most horrible thing when I got my first panic attack. I thought I was going to die. I didn't know what was going on... It was when I was drinking...

"It's so hard to deal with anxiety and depression because you don't know what's going on; you feel like you're going crazy. And eventually because I started getting really paranoid and thinking that medicine was bad for me... I wouldn't take any kinds of meds or anything like that... I actually turned a little bit schizophrenic for a while. Anxiety can do that to you... I was feeling like my food was going to be (poisoned)... People were trying to poison me... It was a really, really tough time..."