I've been having a higher heart rate when getting out bed. When lying down in the mornings my heart rate is usually 50-60bpm, but upon rising out of bed it jumps to around 120bpm. I don't have any problems associated with it that I'm aware of. I just notice the pounding. Usually when lying back down or just carrying on with my morning it goes back to normal. Almost immediately when lying back down or soon within a minute or so when I carry with my day. I'm an anxious person and also just recently started Prozac again. Don't know if these could be factors or if this is something normal.