Anna, definitely positive thoughts and prayers going out to you. My bosses wife had the same thing and it turned out to be nothing. She was particularly shaken because it hadn't been that long since she had some skin cancer removed from her face - for the third time!

I always tend to look on the bright side of things and it appears to me that you definitely caught it early, so even if there is a problem with it, those problems will be minimized by your quick action taking.

I've only had one mammogram so far. A "base-line" they did when I was 40, and I was really hoping technology would improve and they'd come up with a better way to do this before I need another one, so I can definitely relate to your apprehension. An ultrasound on the other hand - piece of cake! They put some goopy stuff on you and just rub a nice rounded mouse-type device on you taking pictures now and then. And they usually warm the goopy stuff too, so it's not freezing cold.

Anway, good luck tomorrow and we'll all be thinking about you!