looking for answers

Hi Guys,

my dad was diagnosed with Stage 3 Esophageal Cancer nearly 3 years ago. He had the surgery and was cancer free for 12 months then docs discovered metastatic nodules/tumors in his lung and 2 in his abdomen. He now has a tumor that is pushing on his bowel and blocking it, they have put a stent in.

My dad was given only weeks to live around 2 weeks ago and has ceased any treatment. He is still up and walking around (with his walker), pottering around in his room (i built in under my house for him). Even goes to the corner store on his mobility scooter.

He eats a small amount for dinner and sometimes has a snack during the day.

Since he has moved in with me, i have noticed a decline in his health. He's 36kgs, very weak, tired a lot of the time, gets out of breath very easily, has trouble sleeping even with his sleeping tablets. I now have to put his pants, shoes and socks on. I see the tell tale signs that death may be near. During the day however, he is quite active.

My question is, can someone be weeks from death and still be quite active? It's worth noting that his oncologist upped his steroid dose to 2 tablets every morning from 1/2 tablet, informing him that this may allow him to live an extra week or 2. Is this why he seems to have more energy during the day?

I'm so confused as I have been mentally preparing for him to have only weeks and he seems to be ok?

I've been trying to google if this is common in people close to death but no answers. Hoping someone can shed some light.

Thank you