Shopping in Thailand?

Hi i am currently a size 14 - 16 in pants/ shorts and a 12 - 16 in tops depending on the brand as i am large busted i am wondering what sort of clothes and if they have my sizes over there???? i am trying to loose weight and lost about 5 kgs all ready but i want to make sure that with my bone structure i can still get the new wardrobe i am looking forward to....