I used to be scared of the pain of dying, too. It sounds wird because I'm so young - but i'm also particularly sensitive about movies. I never watch horror movies - they don't scare me - they send me into shock sometimes
Anyway - I watched a movie - and in it one character was holding onto this other guys leg - if he let go he'd drop and impale himself and die. The guy he was holding onto was also held off the edge - secured by another guy. (call him 'third guy') they were in an elevator shaft - and the elevator was coming down. It would've killed all three of them - because third guy couldn't pull both of them up. So third guy told the guy he was holding onto to kick off the other guy - kick him off so he'd fall and die so he could save the other one. And all this time the guy at the bottom was screaming at him to not let him go. He didn't want to die. But the other guy still did it.
I don't know why, but that particular scene really scared me. It made me feel sick but I couldn't think of anyway round it that wouldn't have killed all of them. It made me really scared - because I kept wondering what I would've done - and whether I woud have pleaded to stay alive at the expense of the other two as well. It made me feel sick and shivery for weeks. Then, I guess I just accepted it - that there was nothing I could do. It was life - you have to just carry on.
The sad thing was the guy who ended up being dropped and dying - his death was instant and painless except for 2 seconds falling - but he still knew he was going to die. He didn't care it was going to be painless. It was the death itself.
I still don't watch scary movies though.
That was directed at Upper. Sorry to get off track.