sick. sick. sick.

someone has stolen my name, silver sparrow designs!  i am just sick in the core of myself about this.  she has silversparrowdesigns.com and she has a facebook page under silver sparrow designs.  i just cannot believe that someone would do this!  when i first came up with my name, i did very extensive research to make sure that no one else was using it...  i do not know what to do.