Mortality?

So, I have pleurisy. Not really sure what it is, something to do with the outer lining of the lungs rubbing on the inner because of faulty/infected fluid between the two? Now I know that;s probably wrong and someone will put me straight - I hope they do.
I'd been telling my Mrs something was wrong but I didn't know what. It didn't just feel like 'man-flu' this time but she still thought I was 'swinging the lead' (where does that come from?).
It reminded me about the old joke about the hypochondriac who had etched onto his grave stone 'There you go, I told you I was ill' - well he was bound to be right one day eh?
This made me think about my mortality - I know, I know, not a particularly cheerful subject. Somebody, somewhere died today completely unexpectedly. Well actually several I suspect did that. You never know when it's your last day, but despite how the saying goes, you can't live each day as thought it's your last - some days you're just not in the bloody mood for that, and wish it was your last day anyway.
A friend of mine used to say when he was fed up (usually after hitting yet another golf ball into a lake) that 'it will be a blessing when the good lord takes me' - and I always knew, and still do, what he meant.
Furthermore, if we all 'lived each day as tho...' there would be humans rutting on the streets like bloody dogs, and whilst it would be funny for a while, we'd soon get fed up of it, especially when we realised it actually wasn't our last day today and how stupid that would make us feel, together with the stranger we had coupled with - and anyway, what would we all do for the other 23 hours and 45 minutes of our last day? Suggestions please, because I've no idea!
These seem strange thoughts with so much killing going on as I write, around the globe - it makes my heart ache, it truly does. Simple question, why does mankind make weapons anyway? shouldn't we have stopped at really sharp swords (man cuts finger on sword "ouch... hey blacksmith, you wanna stop making these dangerous sharp things, somebody is gonna get hurt"). So where do we all think it went so wrong that we want to kill each other? nationalism? greed? vested interest? racism? I think the list could go on and on... oh religion, how could I forget religion ffs?. I know, it makes it all sound so bloody stupid, but even I cannot become a complete pacifist, because sometimes you just have to hit the other guy (Adolf Hitler and Saddam Hussein et al).
We are all gonna die, and trust me because I know, there is nothing after that split second it takes to stop breathing - nothing! No matter what anyone says, ignore them because have absolutely no proof whatsoever of it, or God, or anything - not one shred of evidence anywhere from anytime.
This makes you realise how 'small' we are as individuals, inconsequential little specks - and we'll all be dead in around 5 billion years when our sun expires, so why does any of it matter? Once I realised this fact I found it easier to cope without the constructed god/religion that most of us use as a crutch in life. You don't need it honestly.
What we should focus on, don't you think, is being nice to each other, helping each other, in other words doing/being good.
'Goodness' has got naff all to do with God.
See ya on the other side y'all.
(why have I gone all deep south?... worrying to say the least)