One possible fanfiction could be that Harry tries to hide his chest cold from his friends at Hogwarts. He doesn't want them to worry, so he pretends to be fine during classes and Quidditch practice. But as the cold gets worse, his performance starts to suffer, and his friends start to suspect something is wrong.
Well, perhaps Harry gets the chest cold right before an important exam. He's worried that he won't be able to perform well because he can't concentrate with his coughing and congestion. His friends come to his aid, bringing him potions and trying to help him study while he's ill.
The chest cold can also be described in a more detailed way in fanfiction. Writers might talk about the symptoms like a tight feeling in his chest, shortness of breath, and how he tries different remedies. Some fanfictions might even have Tails trying out some wacky or home - made cures while his friends watch with a mix of concern and amusement.
One common storyline is the 'recovery arc'. Tails is sick with a chest cold, and the story focuses on his journey to getting better. His friends support him throughout, and there are heartwarming moments as they help him through the tough times.
One common plotline could be Naruto trying to hide his chest cold from his friends while on a mission. He doesn't want to seem weak or hold the team back. Another could be his friends noticing something is off and trying to figure out what's wrong with him. They might suspect it's a more serious condition at first.
Well, it definitely slows him down. He can't push himself as hard as he usually does. His stamina is lower, so he might not be able to complete his normal training routines.
Perhaps he is trying to hide his true self. He may have a side of him that he doesn't want others to discover, like some special abilities or a different origin. So, being cold to everyone helps him keep his secrets and avoid getting too close to people who might figure him out.
One way to find 'harry chest pain fanfiction' could be to join relevant Harry Potter fan groups on social media platforms. Fans often share their own or discovered fanfictions within those groups. Maybe someone has written about this particular concept there.
I recommend 'The Cold - Hearted Harry'. It's a short but engaging fanfiction. Harry in this is cold because he has been betrayed too many times. It has a unique plot where Harry has to work with his enemies while still maintaining his cold exterior.