What is a good analogy for bulimia?

Bulimia can be likened to a pendulum swinging between two extremes: one moment, it's a frantic rush to consume food as a way to cope with emotions, and the next, it swings to the opposite side where there's a desperate need to purge and regain control. This cycle reflects a constant battle between indulgence and restriction, often leaving individuals feeling trapped and exhausted. Just as the pendulum struggles to find balance, those with bulimia may find it challenging to achieve a healthy relationship with food and their bodies.