This is the question that you asked in another topic about why cloud is dukkha. Many other people have already gave you many answers but you are still not satisfied so here I can only try. 
My answer is:
From sutta, the death body of other people (or cloud, tree, orange) is called external form.
Such external form is annica so it will eventually and indirectly give rise to something else that directly affect my aggregates, hence annica, and hence dukkha to me.
Such external form is annica so it will eventually and directly if conditions are met affect my aggregates, hence annica, and hence dukkha to me.
For my own death body, due to karma and rebirth, it also gives rise to dukkha to me.