I had COPD since 2006. It was very sever at that time and I was put on oxygen 24/7. I use a nebulizer and inhaler. I walk a little each day to keep the lung muscle strong. I am on 5 to 6 liters of Oxygen sitting and 7 to 8 moving around.. I can't handle heat or humidity well at all. And of course the winters in WY are so cold and I have to wear a mask in frigid temperatures and when the wind is blowing... I can't drive anymore and my travels are very limited.. I just take each day as a blessing and move forward. I do know without God in life I couldn't cope with it.