2006 Mazda 6s 3.0L V6?

My Mazda has the check engine light on but for one of the catalytic converters, But the light started to blink just about 2 hours ago. I was on the freeway and an Acura TL raced me. I hit around 105 before the transmission woulnd't shift past 4th gear (automatic) and by this time I noticed the check engine... show more My Mazda has the check engine light on but for one of the catalytic converters, But the light started to blink just about 2 hours ago. I was on the freeway and an Acura TL raced me. I hit around 105 before the transmission woulnd't shift past 4th gear (automatic) and by this time I noticed the check engine light blinking. I began to slow down and the light kept blinking for around 5 seconds then stopped blinking and remained solid. My question is, is there anything I may have damaged other than the catalytic converter which was already damaged?
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