@acid2come- Hello again. I bet you're thinking, and for all my efforts in trying to help my husband, this is what I get? co2 inhalation can cause a multitude of problems and it gets so confusing to get rid of them all. I'd be running toe very specialist around in a dizzying frenzy. But my suggestion, if you find yourself lost, is to make a list of what is bothering you the most and go from there. Don't make the list with what you think that you might have, but with what is effecting you the most. It might seem like they all do but try your hardest. Then list all of your symptoms per problem. This might help you feel more in control and help reduce your anxiety. I am very glad that you won't put up with lousy doctors. Have any of your doctors suggest a prednisone shot of some sort. It sounds as if your lungs are very very irritated. A nebulizer is great. I even own one for my lung cancer. It does take a long long time for lungs to repair themselves.
What did they do for you or advise you to do?
Did you go to the clinic?
https://www.emedicinehealth.com/carbon_monoxide_poisoning/article_em.htm#when_should_you_seek_medical_care_for_carbon_monoxide_poisoning
https://www.healthline.com/health/hypercapnia#symptoms