Today I got the results of the chest CT I had on Tuesday. There is definitely a 4 mm spot in my right lung, in a place that may be hard to biopsy. It doesn't appear to be a breast cancer metastasis, but it might be a new cancer. I am getting a referral to a pulmonary specialist. At the very least, I'll have another CT scan in 6 weeks to track this thing.
It's possible, that if this is indeed a new primary, that it's due to the radiation I had nine years ago when I was originally treated for breast cancer with a lumpectomy and radiation. But we don't know anything yet.
As my oncologist puts it, "the worry is that it's the tip of a bad iceberg." So I am back on the cancer merry-go-round again, and it's spinning fast this time.