High pulse rate in the mornings

Hi, I have been a bery high pulse rate ( probably about 110 ) in the mornings which is worrying me slightly. It slows down when I exercise and then after that it remains at about 60 during the day. I've had ECG's - all clear. Any ideas on what it could be?

[Jerry_NJ]

What's going on in the morning, and are you talking about your HR before you get out of bed, or are you talking about sometime later, like after eating breakfast?

A HR of 110 is a too high rest HR...are there any other symptoms like irregularity beat rate or other feelings?