I used to have fainting spells because of low blood pressure and thick blood. I essentially dropped dead from it because my blood became to thick to pump. The doc pretty much told me to drink lots of water. I haven t been doing so well at that lately, and then today off and on I have been experiencing this weird, almost indescribable feeling in my chest...It feels like a tightening in tune with me heartbeat, and it then unfurls slowly. It does this at regular intervals, starting around 2 pm. Then it stopped and started back up just a few minutes ago. Oh, I am also pretty excited right now, maybe anxious, because I will be meeting my boyfriend on Sunday (military/long distance thing). If that has any baring on it.