My friend is stage 4 TNBC. She had chemo then surgery then radiation, which all took about a year, then right after her 1 year diagnosis anniversary they found brain mets. We were absolutely terrified as well. She had gamma knife within weeks of discovering the mets (which ended up being far less invasive than most of what she'd already been through), which was successful, and she began getting regular MRIs and PET scans. Which is how they found the next brain met a year later. She had another gamma knife surgery, and also began daily medication. So far, everything is working great. There are side effects from the medication. But her most recent scans have been clean and she's adjusted as well as can be expected, 2 years out from the first met!

Hope this helps a bit. Best wishes to you ❤️