I was born in the US and English is my first language. I have dyslexia (and social dyslexia), so the part of my brain that processes language and social information doesn't work properly, including phonetics.
I also found out a couple of years ago that I had been pronouncing the word "mitten" incorrectly.
Probably many others that I'm not aware of.
>"Interesting. So to your ears what you were saying was identical to everyone else, but in reality it wasnt?"
Pretty much. But it isn't my ears, it's the parts of the brain that processes the information. I was able to discover "or" and "naive" by reading about the pronunciations and actually seeing the difference in print. Once I saw it in print, I could kind of discern the differences by sound, but it was not natural for me and I'm pretty sure that I still mispronounce them when I'm not thinking about it.
@trinsec Well I got save some of the A-material for the second date!