Last night I was playing DDR aka Dance Dance Revelution wich is a Dance game. But I think I may of worked my self to hard. I felt dizzy light headed, unbalanced and my arms and legs felt heavy. Wich just made me push my self harder to move faster so I could lose more calories. So I felt even more dizzy, light headed and unbalanced after. And kinda spaced out.I also wore a heavy long sleev shirt so I would sweat more because I know you lose weight of sweat enouph. I'm trying to lose 18 pounds for september 7th so I really need to exersise. I am a 16 year old female and am 5,10 and weigh 159 my goal os 132. Do you think I may have pushed my self to hard?? ? Because I plan on doing this a couple times everyday! Yesterday overall I burnt 616 calories and my goal for each day 1000 calories. ( it tells you on the game how many calories you burn) is this healthy???