@birdie60, you're on a steep learning curve soaked in emotions. Be kind to yourself and keep asking questions. There are many women here reading to journey along side you, be your sherpa, and to be a virtual shoulder to lean on.

You can also use the group search to find many discussions related to your questions. For example:
@trammell1918 started this one
- Stage O DCIS and heart-related questions https://connect.mayoclinic.org/discussion/stage-o-dcis/

And this one:
- Anyone diagnosed with DCIS breast cancer? https://connect.mayoclinic.org/discussion/dcis-breast-cancer/

See all DCIS related discussions: https://connect.mayoclinic.org/group/breast-cancer/

Getting a second opinion is also discussed here:
- A lot of questions: DCIS treatments and second opinions?https://connect.mayoclinic.org/discussion/a-lot-of-questions/
- Second opinions: I'm so glad I got one. https://connect.mayoclinic.org/discussion/second-opinions-1/