A woman who got a lion's head tattoo because she is a Leo is gutted after Nasa announced star signs had shifted - and she's now cancer.Lauren Sandford, 24, was over the moon when she got a massive lion's head inked on her leg in tribute to the star sign of Leo.NASA have since announced they have found a 13th star sign, shifting the dates for the other star signs to accommodate their new discovery.According to the new calendar, Lauren's birthday of 4 August now means that her star sign is