Zach Bryan is getting candid about his relationship with alcohol, revealing that he once drank as many as 15 beers a day and was intoxicated when he wrote nearly every hit song of his career.

The country star, 30, opened up about his sobriety during a conversation with Matthew McConaughey that was released alongside his latest EP, “Young Manhood and Other Donatable Organs.”

Bryan detailed how his drinking eventually led to severe panic attacks that left him fearing he was going to die.

“When I got in the throes of drinking f—ing 15 beers in a day and I kept going with that cycle, I started getting these really, really severe panic attacks where my whole body went numb, and I thought I was going to have a stroke and die,” he told McConaughey.

“I’d curl up for days at a time, and I went to a doctor. And, like I said, I still didn’t believe it. I told the doctor, ‘Man, I’m just hungover. I’m fine.’ And the doctor was like, ‘No, man.…