Am 5 ft 5 in, 13 st 4 lb, usual excess at Xmas and too much booze. My dad had a heart attack at 46 (survived it). I try to walk the dogs. Few times a week, have 3 children, a full time job. I don't smoke. Feeling a bit rough today, like I'm not quite there and I have a bit of chest tightness. My youngest is 18 months old and is a handful right now. Always chasing her about the place. Am I experiencing a slight pulled muscle or am i aheart attack waiting to happen? I'm 42. Anyone had heart disease or similar so young!