Should i be worried if i feel pain and have irregular heartbeats?

Acute?: Acute onset of irregular heart beat with chest pain warrants urgent evaluation. Heart attack sx can include: chest pain or tightness, shortness of breath, increased sweating, pain or numbness radiating down the arm (more often left than right) and nausea. There could be pain of the upper back, head, jaw or teeth. One fourth of people have heart attacks without chest pain.