@rlf66 I went through concurrent chemo therapy (6 weeks) and proton radiation (30 treatments).

Six weeks later, I am dealing with radiation pneumonitis. We are treating it with daily 60 mg of Prednisone. Dealing with shortness of breath, My O2 saturation goes down well below 95 when moving at a “street walking pace.”
I’ll let you know how things progress. Waiting/hoping that the meds reduce/eliminate the pneumonitis.