You and I, one day we'll die from the same thing. We'll call it different names: cancer, diabetes, heart failure, stroke.
One organ will fail, then another. Or maybe all at once. We'll become more similar to each other than to people who continue living with your original diagnosis or mine.
Dying has its own biology and symptoms. It's a diagnosis in itself. While the weeks and days leading up to death can vary from person to person, the hours before death are similar across the vast majority of human afflictions.
Some symptoms, like the death rattle, air hunger and terminal agitation, appear agonizing, but aren't usually uncomfortable for the dying person. They are well-treated with medications. With hospice availability increasing worldwide, it is rare to die in pain.
While few of us will experience all the symptoms of dying, most of us will have at least one, if not more. This is what to expect.