I've been living in North Jersey for a little over a month now and I notice that I'm starting to pick up a New York accent (commonly heard in north jersey) now. Whenever I say "coffee" , "hot dog" or "walk", I pronounce it as "cawwfee, hot dawwg or 'wawwk'. I don't remember speaking words like that. I'm puzzled - do you just pick up accents naturally?