Last thing you wanted to hear @CathyMac , Sadly it seems often the case. With me they picked up high level DCIS in my MRI which changed my treatment plan from just the initial tumour. Initially I was like you in the fact that you get in your head this is what's going to happen and then all of a sudden the best laid plans go flying out the proverbial window. Now I just feel blessed they found everything that needed to be found sooner instead of BC rearing its bloody ugly head further down the track sometime.
You'll get through this and pick yourself up for sure. As @SoldierCrab mentioned there seems to bit plenty of spare Big Girl Knickers on this forum if you need them. Lol. All the best and big hugs to you. xox