Recalling a moment in the show where he stopped playing, which is documented in a new film about the group, he said: 'That was an honest, freaked-out emotional breakdown.
'(Drummer) Taylor Hawkins and I play off each other live and at that point he wasn't sure what was going on. But I'd been terrified every night for six months before those shows. I mean, 85,000 f***ing people!
'We'll never get used to playing stadiums. We've weathered some pretty questionable music and style changes over the years, and there's always a worry that people will forget about us.'
Dave also admitted he insisted on seeing the group's film, 'Foo Fighters: Back and Forth' ' which chronicles their 16-year career ' before the rest of the band because he worried it could cause problems with their friendships.
He said: ' didn't want it to become a problem. I wanted it to be a good thing, but it was totally cool.
'Watching it, I saw that each person in the band had an uncomfortable moment, me included. Everyone did and I thought it was good because it means we're getting to the truth.'
