Could it be a parasite infection?

Parasitic infections can indeed be linked to various symptoms, such as sudden bowel changes, bloating, and an inability to eat enough protein. Consuming raw sushi is often identified as a common cause of parasitic infections in modern, developed societies. Adam Schafer emphasizes the importance of undergoing a gut test, which includes a stool test, to confirm if a parasitic infection is present. He also points out that while feeling better initially after a parasite cleanse is common, symptoms can return if the eggs are not also targeted during treatment 1.

In the case of persistent symptoms or unclear causes, Adam Schafer and Justin Andrews suggest that co-occurring conditions like SIBO (Small Intestinal Bacterial Overgrowth) or food intolerances could also be driven by parasites 2.