I think about dying every day, in the sense of my strong awareness of the passage of time. I also think about how I will never see my GC get married and be settled etc.
I have no fear of being dead - I think it will simply be as it was before I was born - all life is a cycle - we come, we go, and when we have had our turn and lived our life, others take over and have their turn. We return to the stardust whence we came.
I am concerned about the process of dying - I think everyone is and it would be strange not to. We are programmed to further our own survival, as are all species, and the contemplation of death flies in the face of the prime imperative to survive.
In know that if I die first, my H, who is medically trained, will do all he an to ensure that it is a peaceful and comfortable death as far as is possible.