I knew I was node positive from the start, (mine tumour was invasive ductal, not lobular) so I had a multitude of staging scans and tests before starting chemo. Although my surgeon and oncologist both said the same thing to me about not having routine scans. However, my surgeon has quite happily sent me off for a bone scan and or CT based on symptoms that I've told her about, at each of my 3 visits since finishing active treatment. So far so good.
Huge congratulations on having a good response to chemo, though. That's fantastic