Problem is that women on the whole are getting larger in every direction, and starting earlier - I see a lot of 10 and 11 year old girls who are about the same size you are these days, so to sell to them you end up with childrens clothes the right size for you.

At least clothes exist for somebody your shape. Try having a chest that says you should be 8 feet tall when you're my size. Sometimes I wonder if I could stick a belt on my shirt and see if I could get away with it as a dress.