Husband having fatigue and trouble breathing
My husband has been having trouble with fatigue and catching his breath sometimes, along with a lot of sinus and general congestion. He did have a test done, and his lung capacity was poor. He used to smoke, but quit about 8 years ago. There were a couple spots on his lungs that they said had been damaged by the smoking, but it wasn't emphysema or cancerous. He was told he could take Primatene mist or tablets when he has problems breathing, but he has the problem pretty much all the time. He has an active job where he's on his feet for 8 hours a day, and he's a little overweight, but he's 6'1" and 210 lbs, so he's not that overweight. He's 43 years old.
He's been getting the brush off from his present doctor, and he doesn't seem to want to look into it further. This has been going on for years, and I think he needs to see a specialist, but I'm not sure who he'd see? He sleeps a lot(pretty much whenever he's not working), and I know it's because of the breathing problem. He's already taking an antidepressant for his depression and is on the maximum dose of Adderall for his ADHD. I'm convinced his breathing condition is worsening those mental issues as well due to lack of oxygen.
Anyone have any suggestions on what to do and who to see about this problem? Maybe he can have his blood oxygen checked?
Thank you for your help.