My husband had stage iv NSCLC. Did Chemo. Now doing Keytruda. After approx 24 every 3 wks infusions, he started having side effects — Afibs >had ablation, hypothyroidism >now taking meds. Now has skin rash on chest and back, loss of appetite, sneezing after eating, fatigue, foggy brain . Trying to address all these issues but they keep mounting, I hope he can finish out the 2 years.