If you feel your heart palpitate a little, it doesn't matter.

如果您感觉心跳有点快，那是正常的。

youdao

He felt suddenly faint, and his heart began to palpitate.

他突然感到晕厥，心脏也开始悸动。

《柯林斯英汉双解大词典》

To palpitate is to pulsate with excessive rapidity and often arrhythmically, as a malfunctioning heart might;

指象功能不正常的心脏一样过分快速且经常是有节奏地搏动；

youdao

It was this that caused Mr Arafat's heart to palpitate when he set eyes on Mr Barak's latest withdrawal map.

ECONOMIST: Palestinians and Israel