D..
E., this happens all the time. Please don't worry too much. This is why we have a baseline done at age 35. They like to compare subsequent mammograms so that they see what is normal for YOU. I like to have the same people do mine from year to year so that they have them to look at. That way they don't have to ask me.
So file the paperwork they need to get your mammograms sent to them. Call and ask questions after they receive them. If you need to, set up a follow-up appointment, meeting the doctor associated with the practice to talk about your films.
Good luck!
Dawn