Well, pain in a full true story could refer to the pain of an illness. Take cancer patients, for instance. They experience not only physical pain from the disease itself and the treatments like chemotherapy, but also emotional pain. They might worry about their future, their family, and how to cope with the changes in their life. It's a complex and often overwhelming pain that many face bravely.
Another aspect is the pain of unfulfilled dreams. People who have big dreams but due to various circumstances like lack of opportunities or financial constraints can't achieve them. This can lead to a deep sense of pain and disappointment.
It's hard to say for certain. You'd have to look into the background and research on how the story was developed. Maybe it's based on real events but with some exaggerations or alterations.