Welcome @tdw10, @pharmmom4 @indy0311 and @windyshores may have some experience to share with you.

While we wait for others to chime in, you may also be interested in these related discussions:
- Anyone else diagnosed with IDC & ILC, at the same time? https://connect.mayoclinic.org/discussion/anyone-else-diagnosed-with-idc-ilc-at-the-same-time/
- Anyone had a prophylactic mastectomy for ADH diagnosis? https://connect.mayoclinic.org/discussion/has-anyone-had-a-mastectomy-for-adh-diagnosis/
- Is it possible to be ER+ in one breast, but have ADH in the other? https://connect.mayoclinic.org/discussion/is-it-possible-to-be-er-in-one-breast-but-have-a-different-in-breast/

I can imagine you're anxious and torn about what to do. Getting a second opinion is a good idea. Getting informed as you are doing is also good. When is your second opinion scheduled for?