Hi Dianna,
Yay, glad it all worked out for you in the end. My worst travelling experience was ending up in A&E, with my husband, in provincial Spain on New Years Day.
With regards to the connection at CDG, is it a connecting flight (with the same airline or code-share?) if yes, then make sure you mention this to ground staff in Athens and also to staff on the plane. They can radio through to make sure that the ground crew on the other plane know that you are coming.
Also, Greece and France are both part of Schengen, so you may have to clear security again, but not any boarder control.
Good Luck!