Hi nonna and thanks for you post. I'm sorry to hear of your recent hospitalization. As you may know, typical exacerbations can be characterized by various symptoms which can vary from person to person. I thought you might gain additional insight from this article: https://copd.net/living/flare-ups/. Although the symptoms you described (chest pain, shortness of breath), can accompany a COPD flare-up, they can also be characteristic of other medical conditions too. You may want to speak about this further with your physician. All the best, Leon (site moderator)