What are the signs for having a heart palputations?

Varies: Someone with heart palpitations may experience a flutter in the left side of their chest, or a skipped beat, or a prolonged irregular rhythm, or prolonged fast or slow rhythm. Anything that is prolonged (ex:>5 min), or associated with chest pain, shortness of breath, dizziness, or loss of consciousness needs further evaluation, perhaps even in the er depending on the severity of symptoms.

Palpitations: Palpitation is a vague subjective term used when people feels the heart is going too fast in their chest. May be normal or abnormal. It may be caused by caffeine, stimulants, medicines, bleeding, dehydration, real arrhythmias or diseases of the heart, fever, but it's very common in panic attacks or anxiety.