calm down mate. important to pick a topic you will still find interesteing 6 months down the road. i suggest compiling brief regarding various stages of fashion in terms of entrance,education and graduation, perhaps over a 3 year cycle within an architectural shell.
everything can have an architectural aspect if approached in a simple and matter-of-fact manner. tho' long time ago, (before world cup 90)a pal was refused a football stadium as a proposed thesis topic. funny that. you probably wouldn't have that problem now given the current climate. for a while in the seventies, cemetaries and prisons were very popular.
i had a bit of difficulty understanding your mail. like i said, if there is one thing i have learned since thesis, think simply.....and it will come.