After 2 months of fast heartbeats in the night and palpitations constantly I had a 24 hour ECG which came back normal! I was so anxious that it wouldn't! I wanted to post this to hopefully give reassurance to anyone else who is feeling the same. To think that anxiety can cause you to feel so bad. Weirdly enough I woke this morning feeling my heart was racing but when I felt it, it wasn't!! Just shows the power of the mind!