Causes of Palpitation

Palpitation Menu

Fear or anxiety : The main cause of heart palpitation is fear and anxiety.
Stress : Stress may lead to the condition of heart palpitation.
Stimulants. Caffeine is a big offender. A variety of drugs can affect the heartbeat. Antihistamines and over-the-counter diet aids are common culprits.
Alcohol: Drinking alcohol is the common source of palpitations, even in younger people.
Physical Activity. Heavy workouts or competitive activities can cause the heart to race beyond what normally would be expected. The possibility increases when the activity is accompanied by excitement, nervousness, or other emotional reactions.
Hormone replacement therapy: If you are taking hormone replacement therapy (HRT) you may also notice an increase in heart palpitations at the beginning of your treatments.

Anxiety, stress, fear Fever.
Overactive thyroid
Anemia
Low levels of oxygen in your blood
Medications such as thyroid pills, asthma drugs, beta blockers for high blood pressure or heart disease, or anti-arrhythmics can cause heart palpitation.
If you are already suffering from heart disease, then there will be more chances to get affected by palpitation.