I purchased a spirometer about a month ago from a company called Allergy Be Gone on Amazon in the hopes that I could keep up with Abby's lungs. I have only had it about a week because it shipped from over seas. Today I got an email from cystic fibrosis.com to both of my email addresses that I use wanting my opinion about my personal spirometer. Now I don't mind at all giving my opinion about things, but it is blowing my mind...How did they know I bought it? Did anyone else get a similiar email? I haven't told anyone that I purchased it. Really curious.....