What was Preity Zinta hiding?

Actor-turned-writer-cum-producer Preity Zinta who arrived in the city late on Sunday night from Prague was seen being snapped by the paparrazi at the Mumbai international airport. However what surprised onlookers and the shutterbugs alike was the way she frantically tried to hide her face from them. The actor, who is otherwise known to be quite easy-going as far as being clicked is concerned, baffled all as she tried to keep her face hidden from view, first by her hand and then by her hair. The otherwise uber-chic dresser, PZ was dressed in casual pajamas and a loose tee and seemed in a rush to get in her waiting car. 

The pictures that also went viral in no time on the internet have already triggered a round of speculation of what the actor, currently in news for her comeback film Ishkq in Paris, was so desperate to hide.

An onlooker reveals, “She didn’t seem her usual chirpy self at all, refusing to even wave out to the several fans who had gathered to catch a glimpse of her. But what was strange was the way she was hiding her face with both her hands at one point. But a glimpse revealed that her jawline looked slightly swollen and bloated.” So, what's the secret PZ?