"Fretted" is a term that generally means to be worried or anxious about something. It can describe a state of mind where a person is preoccupied with concerns, often leading to stress or unease. This feeling can arise from various situations, such as personal issues, work-related pressures, or health concerns. In a different context, "fretted" can also refer to a specific design on musical instruments, particularly stringed ones like the guitar or bass. In this case, it describes the raised strips of material, called frets, that divide the instrument's neck into sections, allowing musicians to play different notes by pressing the strings against them.