Like the native speakers here on ELL, I have a respected guru-cum-friend for English. He is very proficient in the language. While discussing my question 'I am too tired to drive', he stopped me even before I could finish it. The very first thing he said was that the adverb 'too' has a negative note.
This was indeed a jaw-dropping surprise to me as I have used 'too good', 'too innocent', 'too beautiful' and such constructions zillions of times in my life.
But then, when I searched COCA, the surprise turned into shock as I observed that most of entries of 'too' had some negation one or the other way.
As always, I find this as the best place to have more clarity on this. I trust him as much as I trust you all! :)