Welcome to HCM
We understand your concerns
You are very good at your descriptions about the conditions but you did not mention your age and other medical
conditions. From the descriptions it is not possible to come to a diagnosis. You donot have chest pain
but you are feeling some missing heart beat and some funny feeling only before going to sleep, not while exercising, not while doing physical work, not while being busy etc,. That means you are having the problem only when you think or are aware about it. This is purely psychological and happens with everyone after 30. Just ignore and exercise and be happy. May be you need counseling. Good luck.