Five years old and she's the original owner? Or has it been with her for five years and it's a 1998 to 2000 model?

It sounds like the car is overheating or getting hot due to an old radiator cap. You should really replace it every year or two, to be on the safe side, as a worn radiator cap will cause boil-over (which sounds like what your Tita is descriing).

And when the coolant boils, the engine gets hot, which causes some of the electronic sensors to overheat. I'd bet you ten-to-one that either the cam position sensor or the ignition coils overheated when that happened. A sign of cam position sensor failure is exactly as described... the car stops for ten to fifteen minutes, then starts up again once it's cooled off. If no permanent damage occured, then it should be okay... but if the car stalls again, you should replace it. The part costs about 3,500 to 4,500 at the Banawe shops.

But I'm just guessing here, only a competent mechanic familiar with the Lynx can tell you for sure what happened.