Barbadian R&B singer Rihanna had such severe headaches during her growing years that doctors thought she had brain tumour.
The 'Unfaithful' star underwent several CAT scans since she was eight till she was 13, when her parents separated.
It was later discovered that the headaches were due to the stress of her parents' troubled married life.
The 19-year-old said that she did not cry or get upset but it was all in her head, and though the memories weren't great, it made her stronger.
"I wouldn't cry. I wouldn't get upset. It was just all in here (her head). "I had to go through a lot of CAT scans. They even thought it was a tumour, because it was that intense," Contactmusic quoted her, as saying.
"It's not great memories. But it helped to build me and make me stronger," she added.