QUALM

Uneasy feeling

• Apprehension

• Apprehensive feeling

• Compunction

• Disturbing feeling

• Feeling of uneasiness

• Misgiving

• Pang of conscience

• Pang or misgiving

• Reservation

• Scruple

• Sudden disturbing feeling

• Twinge of conscience

• Uneasiness about the fitness of an action

• A mild state of nausea