Okay so i am in my mid 20's and average weight on the thin side... and after any activity running around with my boys... time with my boyfriend... any active activity... my heart beat is really loud and sounds like a whooping pulse kinda like when they listen for a baby's heart beat... im highly concerned. I have had low blood pressure fainting spells idk if they could be linked but it feel like my chest is a little bit tight... My father has heart problems and diabetes... he just had 2 heart attacks and a 6 way bipass surgery. So i was woundering what is wrong with me... can anyone help please.