Goodness! I can certainly relate. I was diagnosed in April 2018, had a lobectomy removing the quadrant in which the tumor was contained, declined adjuvant chemo, and opted for surveillance. I had good scans every three months for almost two years when CT followed by PET and biopsy showed metastitis to the adrenal gland and brain. I had gamma knife to the brain and started on the targeted treatment, Tagrisso the spring of 2020. I was on 80 mg for several months, but was not tolerating and was tapered to 60mg and then 40mg. The Tagrisso has been successful for me now thus far. I go every three months for CT abdomen/chest/pelvis, brain MRI, bloodwork, and doctor visits; and my reports continue to be “stable” which is a word we love to hear. I thank God for my doctors at Mayo Clinic, for my treatment, and my husband who is with me every step of the way. I will be 76 in January. I am tired much of the time, which I attribute to a combination of cancer, treatment, and age.