I have a constant immense fear of this and have from time to time been so afraid of this i have not been able to function. I sometimes feel my deep rooted fear of this is what causes my hypochondria to flare up big time.
I suffered from this as a child greatly but at the time I had no idea what it meant but these days as i sit and think about the meaning of life I can not control the fear that comes from it.
I struggle with the fear of non existence, and eternity. I am always trying to figure out what is eternity, does it exist, what will I feel if anything. It then leads to what will happen to the universe in 100s of billions of years from now, while civilization still exist, the universe ... ect ect... and i get great amounts of fear from this - very troubling.
I have for years wanted to find spirituality and often decided to go to church or a buddist temple but after the symptoms stopped I would stop going, it was almost like i was doing things just out of fear and not really becuase I was a religious person and it made me feel guilty and sinful.
I once had a friend when i was a small boy who told me if i did not believe in God I would burn in hell for eternity and this terrified me so badly and scared me for life as i pictured what it would be like to burn forever.
Sometimes like now I can write about and it does not cause me anxiety but then other times it freaks me out so badly..
Its the uncertainty of it all - on what will happen and the feeling of void, nothingness and bothers me.
This is why i dislike sleeping so much over the years, they say its like being asleep, but that means nothing happens, you cease to exist and done - that really bothers me.
I want there to be something after death and the fact i do not know if there is anything really scares the hoot out of me..
I dont want to stir up other peoples fears, but this is the only way i know how to try and deal with this fear of mine to discuss it.
I just believe this was one of the main reasons for my health anxiety.