I am a 75 yr woman diagnosed with COPD. I am a two times cancer survivor, breast and lung cancer. The upper left lobe of my lung was removed in Mar 2019. I did this to myself for smoking since 16 yrs. I had several surgeries since including cervical stenosis on C2-C7 in December last yr. I starting using Trelegey 2 weeks ago. I inhale at same time every morning. Has made a big difference, but have of tightness in my chest some times difficult breathing. Looking for suggestions on how to live with Breathing. Can I use other inhalers