Amatriptyline helped a lot with my nerve pain, but it made my heart race. I had to take atenolol (beta blocker) to slow it down. Could you call your primary doc and ask for an ekg? Mine will do one if I ask. You could also go to the ER. They take heart stuff seriously and there's nothing wrong with getting checked out just to make sure everything is OK.

Also, please call the doc who prescribed the amitriptyline and report your side effect. They need to know.

The last time I had an episode of racing heart was because my surgical incision was infected. The all day resting heart rate of 95 was the first symptom I had. It's possible that your heart is telling you there's something physically wrong.

I hope you find an answer soon. That constant pounding is no fun!