The plot might take a darker turn. Harry's condition could make him weaker and more vulnerable, and his enemies could take advantage of this. His friends might have to fight to protect him while also trying to find a way to heal him. It could also lead to a situation where Harry has to make difficult decisions about his own health and the safety of others.
It could lead to a journey where Harry has to find a specific healer or a magical place that can cure him. Along the way, he might face more challenges and discover secrets about his condition or the magical world.
The other characters could rally around him to find a cure. They might search for ancient spells or potions to heal him.
Well, it could lead to a lot of self - discovery for Percy. He might start to question his own mortality and his role in the story. This could make him more determined to fight against whatever is causing his condition. His relationships with other characters could also change. Some might become more protective, while others might be afraid to get too close in case they catch whatever is wrong with him.
It could lead to a discovery of a hidden plot against Harry. His coughing up blood might be a sign that there is a much bigger conspiracy at play, perhaps involving someone close to him who wants to weaken him for some ulterior motives.
Often, his friends would rush to his aid. They might try to find a cure or figure out what's wrong with him. Maybe Hermione would start researching in the library right away.
It could be a new dark wizard. There are always new threats emerging in the fanfiction world. This new dark wizard might have a vendetta against Harry and uses a special spell or potion to make him cough up blood.
Well, it could be related to some sort of poison. Perhaps he was poisoned by an enemy who managed to slip something into his food or drink. The poison could be slowly corroding his insides and making him cough up blood as a symptom. It might also be part of a plot by a new villain in the fanfiction world who is trying to weaken Harry in a more insidious way than the usual dark wizards.
After he throws up, he might discover a new clue. For example, the vomit could have some strange color or texture that indicates what kind of poison or magic is affecting him. Then he could start looking for a cure.
After Ginny gives up on Harry, Harry himself could be forced to re - evaluate his life. He might realize how much he has taken Ginny for granted. This could lead to a period of self - reflection for Harry, and he may try to win Ginny back, which would create a whole new set of plot developments.
Well, it could lead to Harry feeling a bit heartbroken at first. But then he might focus more on his fight against the dark forces. He realizes that their friendship is more important than a romantic relationship that wasn't meant to be.
The plot could develop with Harry trying to find out the reasons behind Ginny's cheating. He might start investigating who the other person is and what led to her actions.
It can make him more determined. When Naruto coughs up blood in fanfiction, it often shows that he's facing a serious threat. This could fuel his determination to overcome whatever is causing it, whether it's a new enemy or a personal ailment. He'll be even more driven to prove himself and protect those he cares about.