Love-sick refers to a state of being intensely enamored and feeling physically and emotionally ill as a result. Love can evoke such intense emotions, from euphoria and bliss to heartbreak and despair. That said, there are different expressions that denote the same feeling of being love-sick. One alternative phrase is "smitten," which describes a state of infatuation and adoration. Another option is "lovesick puppy," a colloquial term that implies a deep yearning and longing. Other synonyms include "besotted," "infatuated," "enamored," and "captivated." These words all highlight the powerful and transformative nature of love and how it can impact our wellbeing and emotions.