Paul McCartney has said that The Beatles most likely suffered from mental health issues, but they were reluctant to discuss it at the height of their fame.In a new interview with The Sunday Times, McCartney said he and his bandmates – Ringo Starr and the late John Lennon and George Harrison – were more likely to make fun of their issues in order to hide them.When asked if the group experienced mental health issues, he said: “Yes, I think so.