@heathert– Hello. I am also a stage 4 lung cancer. I have multifocal adenocarcinoma of the lungs. I get many lesions at once. They are considered primary cancers. But some come and go. I've had this since 2007. I am currently stable, meaning that all of the lesions that are being watched have not grown.
You have a lot going on in your lungs so I bet that you feel tired. I have read your posts and wonder if your iron levels are still low or if you wound up getting an iron infusion. When I was being treated I felt a fatigue that goes beyond words. Are you in any treatment for your lung cancer?