Heartburn and insomnia are technically two symptoms, but heartburn can trigger insomnia. Causes of upset insomnia are mainly the following: 1, drinking strong tea, coffee or playing cards, watching movies, listening to high-pitched music and other bad habits before bedtime; 2, suffering from physical diseases themselves, such as frequent back pain or physical discomfort, always in an unhappy and inappropriate state; 3, long-term anxiety or depression of the mind, resulting in habitual insomnia; 4, the external environment or noise interference or uncomfortable bed, etc.