Question: what to do when your heart beat too fast?
Answer: Overview. Do you ever feel like your heart is pounding or fluttering much faster than normal? ... 
Try relaxation techniques. Stress can trigger or worsen heart palpitations. ... 
Do vagal maneuvers. ... 
Drink water. ... 
Restore electrolyte balance. ... 
Avoid stimulants. ... 
Additional treatments. ... 
When to seek help.