improper diagnosis

Good Morning! A little backstory first. I'm 48, never smoked but do have job related factors. I was diagnosed with COPD after a spirometry 8/2017. I also had sarcoidosis in my right eye like 25 years ago. Family doctor sent me to see a pulmonologist. My mom passed away from COPD complications 9/2014 and I hated her doctor so I looked out of the area for a different one. Found one I like and started seeing him 11/2017. He put me on advair discus and proair rescue inhaler. Saw him again 6/2018 for a 6 month checkup and he ordered a ct scan of my lungs/chest to check for sarcoid and other issues and an echo on my heart. Got a call from him that the ct scan and echo look good. I saw him 8/31/18 to discuss the results in depth. He said my lungs were clear, no signs of sarcoid or copd and there was a distinct possibility the spirometry was done incorrectly or some other reason but he feels I do not have copd. I feel like a year of my life was wasted, along with countless $$$ on meds I did not need. Was also tested for Alpha 6/2018 and results are negative. He told me to stop the inhalers and he thinks my issues are caused by deconditioning, I'm not sure how as I exercise and walk alot at work.

Guess my question is has this happened to anyone else and how do you deal with the emotions it has caused. I have an appt with my family dr in a few weeks to discuss with him,I'm relieved but upset and wondering if I really don't have it after believing I had it for the last year.