I don't think this is type related, because I have seen exactly what your describing in my ENFP buddy. It becomes much worse as he drinks. It's like he lack awareness of where he is in space and time, he has no sense of natural energy exchange. I went to Vegas with him a while back and made the mistake of sharing a suite. After being up for 36 hours I was done. He couldn't stop bloviating on about anything and everything, rappidly connecting idea to idea, it was unlike anything I've seen in people before. An Ne ganked out coke binge wouldn't hold a candle. At first i felt terrible for him, as the group we were with initially found him comical and interesting, but then became very drained. I have no idea how this problem would come about, but I suspect it involves self absorption to the point that you are incapeable of picking up social, environment, and intra personal queues. Just a complete lack of awareness stemming from an inability to comprehend the value of non-verbal, observational knowledge?
Anyhow, good luck!