Handywoman,
I'm so sorry you are having such trouble because of your bad lungs. My husband had lung cancer and my mom had pulmonary emphysema. Both had the same breathing problems that you are having. However, they both had home oxygen and nebulizer breathing machines that helped them a lot! Also they both had hand held nebulizers that they puffed on when they felt breathless. These helped a lot too. Do you use any of these things? If not, you might want to try them. Another thing that helped both of them was prayer. God is there for you. He will help you. Just talk to him like he's your best friend and he is! I'll say a prayer for you too.
PML