Why does the heart sometimes skip beats and then race, and can astrology show the reason?

Hello, mera naam Tanish, born 5th September 2004, Mumbai, 10:15 AM. Kabhi kabhi bina reason ke heart tez dhadakne lagta hai aur main ghabra jaata hoon. I’m a Leo, and I’ve read Leos feel emotions intensely — could my chart be showing that?