@Lythe
I found myself feeling teary reading your post. I can feel your concern, fear of recurrence.
I have a friend similar to you, had the full chemo and herceptin treatment only to have a recurrence. It's those pesky stray cells.....here's hoping the pathology suggests they've rid them for good. Hope you've got yourself busy, going for a walk, reading the paper, sitting out on the verandah, any distraction.
Maybe go back to page 1 on the Friday Funnies
Take care and know we're willing you along for good results