What Does It Mean When Your Body Feel Weak?

You may either be getting sick or your body is lacking the nutrients it truly needs.

General weakness and fatigue by itself can be a symptom of a lot of things, from oversleeping to leukemia. The things you'll want to check for are the flu, diabetes, and your thyroid. Fatigue and weakness can also be caused by not getting enough sleep, sleeping TOO much, and not eating enough of the right kinds of foods like fruits and vegetables. An apple can wake you up in the morning more efficiently than a cup of coffee.

Iron deficiency.

You may be getting sick

It could mean so many things but the first thing that came to mind is anemia

I pass out my back of head is on fire trouble breathing body so cold

You could just be tired,fatigued,fighting off an infection....see a doctor for a blood test...there are to many things that can cause feeling like your motor is run down...