I was told I had COPD 16 years ago. I quit smoking but cheated having one now and then but now none. My question is: after usually being in the hospital about once a year, my copd has crashed 3 times since the first of December. Once it was with broncus spasms. How can I avoid this? Wash my hands, take my meds, use oxygen at night and until recently went to rehab 3 times a week for 7 years. What am I doing wrong?