First, research about panic attacks. Understand the symptoms, the psychological and physical aspects. Then, develop your characters. For Percy, think about his personality traits and how panic attacks would affect him. You could start with a scene where Percy has his first panic attack in a public place, like a school cafeteria. Describe his feelings, his racing heart, his shortness of breath. For Paul, decide if he's a friend, a family member, or a mentor to Percy and how he'll react.
One great Percy Paul Panic Attack fanfiction could be 'Percy's Struggle with Panic'. It might focus on Percy's journey through his panic attacks, his attempts to hide them from others, and how he gradually overcomes them with the help of his friends. It could show his internal battles and how he copes in different situations, like during a big exam or a public event.
Annabeth would be a likely helper. She's very perceptive and has been through a lot with Percy. She would probably be able to sense something was wrong and offer her calm and rational presence to help him through it. Grover could also be there. He's Percy's loyal friend and his empathy for Percy's situation would make him a great support. He might even use his nature - related powers to create a more soothing environment for Percy.
One possible fanfiction could be Percy having a panic attack during a battle. Maybe he's facing a new and extremely powerful monster that reminds him of past traumas. He starts to hyperventilate, his hands shaking as he tries to grip his sword. His friends notice but are momentarily too occupied to fully assist him, adding to his sense of isolation and fear.
One common theme is friendship. His friends often play a crucial role in helping Percy through his panic attacks, showing the importance of support systems.
Well, it could be about Percy being in a very stressful situation like facing a powerful enemy he's not sure he can defeat. This causes him to have a panic attack. Maybe he starts hyperventilating and his friends have to come to his rescue and calm him down.
To make it interesting, you can focus on the contrast between Percy's world and the Avengers'. For example, Percy's magic from the Greek gods is very different from the technology and superpowers in the Avengers' universe. When a panic attack occurs, this contrast can be highlighted. Maybe Percy's way of dealing with the panic attack is through some ancient Greek ritual, which the Avengers find strange but effective.
Well, a great Percy Avengers panic attack fanfiction could be centered around Loki. Imagine Loki, who is always so in control, having a panic attack after a failed scheme. Percy, being a demigod used to the treachery of the gods, understands his state of mind. He uses his knowledge of Greek magic and psychology to calm Loki down. Or perhaps it's a story where the Avengers are facing a new threat that is somehow related to Percy's world. The stress of this unknown danger causes one of the Avengers, like Natasha, to have a panic attack, and Percy has to step in to assist.
Well, it could be due to social pressure. Maybe Percy is being bullied or feels left out by classmates. In school, the fear of not fitting in can be overwhelming.
Well, I remember reading a 'percy panic attack fanfiction' that was set in a modern AU. In this story, Percy's panic attacks are triggered by his school and social life stressors. It was quite unique as it explored how he coped without his usual demigod powers and just as a normal teenager dealing with mental health issues.