One common theme is the exploration of his past traumas. Since Harry has been through so much in the original series, these fanfics often dig deeper into how those experiences still haunt him and cause panic attacks.
One good example might be a story where Harry has a panic attack during a particularly intense Dementor encounter outside of Hogwarts. The author could describe his racing thoughts, shortness of breath, and the way he struggles to cast a Patronus in that state.
One common theme is the clash of different cultures. The magical culture from Harry Potter and the military - tech culture of Full Metal Panic are very different. Fanfictions often explore how these two cultures interact and influence each other.
One example could be a story where Harry has a panic attack during a Dementor attack that goes beyond the normal fear. He might be reliving all his traumas at once, like his parents' death and Cedric's death. The author could vividly describe his shortness of breath, racing heart, and the feeling of impending doom.
One good fanfiction could be 'Harry's Hidden Struggles'. In this, the author delves deep into Harry's post - war trauma which leads to his panic attacks. It shows how he tries to hide it from his friends at first, but as the story progresses, they start to notice and offer their support in different ways.
Love and lust are often explored. Given the Veela's alluring nature, there's a lot of tension in the relationship with Harry. Also, the theme of identity. Harry being evil is a departure from his original character, and the Veela mate can either reinforce or challenge this new identity.
They can start by really researching what panic attacks are like. Describe the physical symptoms accurately, like a racing heart, shortness of breath, and trembling. For Hermione, they could show how it affects her in a magical context. Maybe her magic goes a bit haywire during an attack. Also, show her thought process, like her fear of losing control, which would be a big deal for a character like Hermione who likes to be in control.
Self - discovery is also a theme. Harry often discovers more about himself and his own mental and emotional state through experiencing these panic attacks. He may learn to accept his vulnerability and find new ways to cope, which can be a really inspiring part of these fanfictions.
One common theme is the struggle for acceptance. Harry often has to deal with others not understanding his seizures. For example, some characters in the fanfiction might initially be afraid or confused. Another theme is the search for a cure. Since it's the wizarding world, there are often attempts to use magic to heal Harry. And of course, the theme of friendship. His friends like Ron and Hermione are usually by his side, helping him through the difficult times.
No, it's not a common theme at all. Most Harry Potter fanfiction focuses on the magical world, adventures, relationships, and expanding on the original story's plotlines. Lung cancer is a very modern and muggle - related illness that doesn't really fit into the typical magical world of Harry Potter. So it's quite rare to find such a theme in the vast sea of Harry Potter fanfiction.
They can describe his physical symptoms well. For example, 'Harry's hands trembled uncontrollably as his chest tightened, making it hard to draw a full breath.'