Apparently her hard-partying ways have made it hard for her to perform night after night, and she was close to cancelling a show in Dublin after a big night out.
"She's just a young woman who just wants to have fun, but she was feeling pretty low," a source
said. "It's a mix of exhaustion and stress.
"She's been partying hard to take her mind off things, but there are days when she wakes up and
doesn't even know where she is because of the travelling. It's no wonder she is feeling down."
The Sun report that Rihanna went forward with her Dublin show after making a teary phone call to friend Beyonce.
"She knows Rihanna needs downtime or she'll burn out," said the source.