I am so sorry to read this about your dad, it will be so hard for you.  I found yesterday so emotionally hard.  You will see a lot 'that everyone is different' and I can only give you my experience.

  Mine was diagnosed 21st October this year.  He was told it had spread from his lung to his ribs, spine, liver and lymph nodes.  We were told he had months left, they may be short or they may be longer.  He had a goal of getting to Christmas and now we have got here i worry I will loose him soon.

In the last 2 months i have watched him loose 3.5 stone.  Eat less and less. Get weaker. Sleep more and now strugglung with toileting. I used to stay over only half the week and now I stay with him every night as he is weak and in pain which causes him to loose his balance. 

We are taking the time to try make memories and I try to keep him as calm and relaxed as I can.  I can fall to bits when he is gone. 

If your dad has a palative team put in place they may be able to answer questions without breaking patient confidentiality. 

I am really sorry I can't give the answers you need. I felt the same late October/early November.  Take care of yourself too and remember it is okay to get. 

Take care. 

Hey, I'm sorry about your dads diagnosis, my dad survived about 2 months after this stage of the same cancer. We seen him deteriorate from just being tired all the time and coughing a lot, getting weaker and sleeping more, by the end he was a little delusional and couldn't get out of bed, almost like someone with Alzheimer's and he passed about a week after that. All I can say is see if you can make some last memories with him before he gets to a stage where he is too weak to do so. It's a big blow but remember that they will be able to manage his symptoms so he isn't in pain xxx

Hi Greeneyes, another here who had that devastating news out of the blue...about my Mum. Its now 5 years ago, but we had 6 weeks from diagnosis. It was a very hard time, and exhausting. Most of it she was at home but we had great help from local hospice team and she did end there by her choice.  But I would say that the treatment she had to shrink her tumour made her much more comfortable and allowed her to end as herself....so don't assume its completely pointless even though there's no cures available....One thing which you might be feeling is "how come we didn't realise"...and the specialist for Mum pointed out to us that because the cancer is in the lung it can grow large without anyone being any wiser, so its only when it interrupts other systems that you discover it. Sounds obvious, but it made me feel better about thinking she just had a cold for a few weeks - it wouldn't have made any difference....

Thankyou to those who have messaged for your kind words and a better understanding of this it's helped me get to grips with this