I am 45 and I'm having some symptoms I'm unsure about. My neck has been hurting all day, I'm having a little bit if discomfort in my back and chest, and my jaw feels like I have been clinching it for hours. My bp has been running in the 150/90 range the last half an hour or so. Could I be having a heart attack? My husband thinks I just drank too much Red Bull, and am feeling and because of it.