My 8 yr old started complaining of his heart pounding this morning at 5am. He said he did not have a nightmare. We put him to bed at 8:30 tonight and he came down with the same concern. I could literally feel his beating just by sitting on the same couch with him. I could hear the thumping too. When I put my hand on his chest, it feels abnormally strong. His testing heart rate is 84 (both this am and pm). Could it just be dehydration? Or something more concerning - he s really scared which makes me even more concerned. Thank you!