when ever I run a push vaccum cleaner or a push mower I get real light headed and end up with a headache and feel very shakey. In a sense I feel like I am walking around very light headed like I can pass out. I use to be extremely overweight but around 162 now but when I was at 280 this would happen during most strenuouis task, it only happens now when I do these two things. I use to get heart skips or flutters alot but rarely now. My father died of heart blockage and my mom has blood pressure issues and has had 2 heart attacks. Could this be related?