So was curious if this was unique to me, or is a universal experience. As soon as I start thinking about taking my medication in the morning, my heart starts racing before I’ve even taken the bottle out of the cupboard. Then I take it and my heart continues to race for about 45 to 60 minutes before it calms down. It doesn’t hurt, but it’s unpleasant and kinda spoils my mornings. Anyone who has ever consumed way too much caffeine in a short period of time can relate.