I just hope it's not the piston. Someone said that if it were the car would be shaking harder then mine and a few people have said there would be leaking which hasn't happened. Hopefully it's something a little less costly. I have to drive to get to and from in town.
edit: I drive fairly slow though.
As mentioned by
@gossie don't drive it...
Unless you know what the problem is and that driving it wont cause more damage... don't drive it....
At the end of the day, by not knowing and by continuing to drive, you may cause yourself a much higher repair bill than would otherwise be the case. Hope is never a good way to achieve something (otherwise i'd win lotto every week)...
As an example, i know one lady who HAD to get to school to pick up her kids. She ignored the temperature gauge until she cooked the motor just after picking them up but before getting home. Sadly, i knew the car simply needed some water and a new radiator cap. But she killed it by driving until steam started to pour out from the bonnet. Later when checking it, it needed a new head gasket and all that entails... so she junked the car as a result... just because she HAD to pick up the kids... Seems sometimes we just don't help ourselves.