I am so so sorry to hear this.
I am going through the same. My dear dad, at the tender age of 65, was diagnosed with lung cancer last week. He has had scans and it was found that it originated in the right lung and has invaded his trachea and esophagus and surrounding lymph glands (but mercifully not spread further) He is now in hospital on drips and being tube fed as he cannot swallow and finds breathing hard 
I saw him only 6 weeks ago and he was fine, having just been diagnosed wiht COPD and a bit wheezy, but nothing else. 4 weeks later he lost the ability to swallow and then last week the diagnosis from hell. So it was not COPD after all...
They cannot operate due to the location of the tumours. So they are going to give him heavy duty chemo and radio in combination. Apparently it is going to be gruelling. And will only buy him time. How much time no one is willing to put a time scale on. And the best they can hope for is that he can swallow liquids and soup. No lumpy bits. Not sure how his lung function / breathing will improve. No idea how fit he will be. Dad is a big, fit, healthy active man, keen walker and sailor. This is so sad...
My mum is in bits but being strong.
My parents are in The Netherlands (I am Dutch) but my dsis and I live here in the UK. So are limited in how much practical help we can give. Dsis visited last week, I am going this weekend.
Keep posting, perhaps we can support each other a little, or at least give us somewhere to vent...
Ps - why the name change - are your family members on here?