Hi
I didn't want your message to go unanswered but I am not sure what I can say that will help you deal with your DS ......
I know that when I was growing up I thought that the world would end - Nostradamus and all that - I was convinced that I wouldn't reach 21... I did..
...then there was the Millennium bug - I worried a lot about that too - I survived.....
When I has my DS I didn't think that he would survive until he was 5 years old - he did and is now 16.....
and when 9/11 came - Hell - I was just out furiously buying water and rice in massive quantities to store.... and working out all kinds of survial strategies should a World War break out.... we spent a good few years eating thru the supplies...
I think it comes from an anxious personality - and an inability to be able to think that you control your destiny.
..not sure what to suggest - they are no God-Givens in this life and maybe that and mortality is just becoming apparent to you DS ... when we are young we believe it will be forever - and life is not always like that...
I think I picked up a lot of this paranoia due to my Mother - I always remember that she had large cupboards with supplies - maybe for the Cuba crisis, maybe for the toilet roll shortages, maybe for the sugar shortages, maybe for the power cuts back then - who knows - but the gathering/survival instinct has been with me a loooong time...
.... I am a little better now - I don't bulk buy at the slighest hint of uprising on the TV - but I must admit that I am worried about December 2012.....
Luckily I have a positive partner who humours me and takes the mickey from time to time and manages to talk me thru my fears (sort of).....
I think that you need to talk thru what your DS is feeling and get him to articulate what is the worst thing that could happen and then maybe talk thru "plans" to help him.... what it the worst that could happen....
..sorry I can't be of more help - but I feel his panic sometimes...