I just got off the highway before I felt it.
I was going 80-90 on the highway for 10 minutes or so.
It was a smooth ride. When I got off the highway i drove 30-35 on local road and this is when I began feeling engine shake.
But it was the end of the ride cause I got home. An hour or so later I got out and started the engine to see if it is the same. It was shaking and the engine light came on.
Next morning I drove my car for 10 miles or so. The ride was harsh. Engine kept shaking and I shifted the tranny gear using tiptronic because it was shifting hard in D mode.
I parked my car and went with my kid to the dancing event for a few hours. After the event I got back to the car and felt nothing since then. No more shakes or hard shifts. The only thing remained was the engine lite that we turned of after scanning and reseting it off. My friend who owns the auto repair shop said that three cylinders misfire is not a good sign. It could be the catalytic converter also.