"Congratulations on your Lap-Band!"

So I play Words With Friends. I have a game going with my cousin Sharon. She starts a chat with me saying "Congratulations on your Lap-Band" OMG WTF?! First off, I did not have a lap band. I had a VSG, but whatevs. Second of all, since my cousin Sharon knows, this means that my mother told her sister (my aunt) who told her (and who knows else.. I'm sure my cousins Tina, Debbie, Mark and Nate Jr. all know by now as well). Great. My mom told my private business to her sister. She has no right to tell my business to anyone. I am not ready to deal with my extended family knowing all of my business. And they all will know my business. That would be like me telling my mom I was pregnant and her telling the family before I announced it. So I'm a bit miffed at my mom. What is funny is that I had to be badgered to tell my parents about it. Initially I was not going to. BECAUSE OF EXACTLY THIS HAPPENING. Why is my private business okay for the entire family to know about? I would never tell everyone in my family about some other family member's private medical procedure. "Oh hey Suzie, I told cousin Jeannie that you had an STD. Hope that is okay." It's not okay. Not one bit of okay.