Hi TrishV, Everyone is a bit all over the place on initial diagnosis! It's a real shock to the system! This site is wonderful for support as there is always someone who has walked your path and can give advice. I also had big boobs and ended up deciding mastectomy straight away...but I also have BRCA 2 diagnosis.. .Chemo will differ from person to person regarding side effects ...just be a really strong advocate for yourself if you have side effects as there are medications of all types that help. Did your surgeon put you into contact with a Breast Care Nurse? If not, request it as they can be helpful although in some places they are thin on the ground...most of my contact was through SMS but she was still helpful and knowledgeable. You can also get lots of knowledge from this site as well. Wishing you all the best!