Dear Relapse, I'm so sorry to hear your news. I am in the same situation with markers increasing last year and confirmed MBC in December via lung biopsy. The pleural fluid build up caused severe respiratory issues and I've had 3 thorocentesis to drain. MBC is not curable but definitely manageable. I began treatment with Verzenio, since it is a pill it falls under prescription insurance. Very expensive but Eli Lilly has a plan called Lilly Cares, your oncologists nurse can help with the application, that covered my copay. Diarrhea is the main issue with this drug. Unfortunately, after 6 months, a pet scan established the Verzenio was no longer effective. I began chemo (Abraxane) the first 6 treatments full dosage and resulted in getting the cancer under control. Dosage was reduced by 20% dramatically improving my life balance. I will be on this chemo until it is no longer effective at which time we'll try another chemo. I share all this to let you know, while the diagnosis sounds devastating (I thought I was at end of life), there are options that will allow you to have as much of normal life as possible for quite some time. God Bless!