I only suffered from this when my dad was fighting for his life. Because he had COPD, level 2 respiratory failure, and the flu. Thankfully he was with the medical team when he took his last breath. When they knew nothing more could be done to save him they kept him comfortable. I do not wish on anyone what I went through because it was horrible to watch. But I am grateful for my dad having a friend there when he needed to get medical help and the medical professionals doing what they could for my dad.