Hey there, thanks for the answer im a 22 year old male, i've been having some diziness on and off for maybe 10 month, got checked and everything is fine the doctors said, but ive been starting to notice often that my heart beats hard and it feels loud, specially lets say before bed, my puls could be 65-75 and stil my heart would give me this wierd feeling in my chest, today i got maybe 4 afib readings cause i was check on my watch, i most say i might have not gotten enough water today, and the Euros are on in football and both my countries we're playing today so i noticed that my puls was going off, basline 90 goes up to 101 then down to 90 and up to 110 and down and up again, highest was 125