I'm not talking about a fair amount of exercise all day, like in skiing blacks from 9 till 4. More like really pushing myself running or bicycling or weight lifting.
If I really push myself, I can feel lots of blood pound in my head each heartbeat and it hurts. Also, I feel awful until I get my second wind, that is the time when the body switches to burning fat and carbs instead of protein.
But the most notable effect is that I get depressed during and after heavy exercise. It's the same feeling I get when I have extreme lack of sleep. Nothing seems interesting, my head hurts, and I want to go to bed.
Is this my body telling me to back off, or am I just out of shape? Do you have the same symptoms?
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