Its on the QT interval list. If you are taking drugs that are on that list or have heart issues then yes. If not, goto a cardiologist and get a EKG. Domperidone, Amitriptyline , etc can all affect heart rhythm.

Dont discount it. I remeber being on Amitriptyline and feeling like my heart was beating funny and then again others dont have that issue. Its worth a shot.