I am going through a similar trauma with my wife. Stage four colon cancer with severe met to her liver. Colon resection, ostomy, heavy chemo. The first weeks were very discouraging as she was told to get her affairs in order.
With support from friends and family we decided to travel to Mass General in Boston for a second opinion.
The liver surgeon cancer specialist there gave us great hope that curative surgery is an option if the chemo works at all. If the chemo doesn’t work as expected he plans to place a Hepatic Arterial Infusion Pump under her skin to boost a concentrated chemo directly to her liver artery. He is confident they can reduce her liver tumors to the point he can operate.
This gave us renewed hope and the difference in my wife’s condition improved dramatically almost overnight.
We still have a long road ahead but hope is a powerful drug of its own. I’m sorry I can’t comment about met to the lungs as we believe her lungs are currently clear.
You are strong enough to handle this - get a second opinion and treat it like problem solving