Hi Tom: welcome to this board. I see you have had all the ususal emotions that one has when finding out about a cancer.
These days, lc if more treatable than just 5 years ago. If the cancer has not yet left your lung, it may be operable. Of course, you have a problem with your heart. If you are not a candidate for surgery, you can get it zapped with cyberknife surgery depending on the size. Let us know more about the size, location and staging and we can offer suggestions or experiences we have had in situations that would be similar to yours.
You might want to ask for brain mri. I read an account from a medical professional who says that since people are beginning to survive lung cancer for longr periods of time, scanning and monitoring for brain mets is more important than it used to be. It used to be that people would be dead before brain mets became a problem. Brain mets can be managed better if they are caught early.
When I found out I had cancer, I just blabbed the news to whoever would listen.
Once you find out more about your situation and the oncologist comes up with a treatment plan you will settle down into a routine and your life will resume a more everyday rhythm.
Hopefully it is early stage and you have a shot at a cure.
Don M