Thank you to everyone who responded. After changing my mind several times I finally got in to my psychologist (I had been discharged previously), who told me I needed to nail down my onc and ask likely disease trajectory with and without mastectomy and radiotherapy.
My Onc said that some people are considered “extraordinary responders”, and although it was too early to classify me as one yet, the fact that I had so little Metastatic disease after more than 2 years, and nil for the last 14 months, suggested that I could be one, and thus aggressive treatment was warranted. I was surprised and thrilled to hear this, as I had asked my previous Onc (I’m on my fourth!) if I was oligometastatic, and she had dismissed my question, saying the term was controversial. I then clarified that even though I’ve had mets in 2 sites, liver and bones, I was still oligo. I also said inflammatory breast cancer is considered very aggressive due to skin involvement, she agreed but said that I had still showed a great response. She said it was more likely in people who were HER 2 positive, as I am. So I’m now booked in for 16th this month, which gets me to 6 weeks post op at the end of the year and to commence 5 weeks of Rads beginning Jan. I’m not thrilled about Rads in summer as I live in the sun, but such is life.