What does it mean when your chest hurts & your chest is warm & your head hurts & your body is sore but you don't have a high temp. & your always tired?

Causes: Depression, anemia, chronic infection, etc. See physician for evaluation.

To me it means: You should see a doctor, be diagnosed and get treated. Low grade temperatures can be serious too. Your other symptoms are also signs that something is not right and... Hey, i think i just answered your question - well, it's worth repeating. Go to a doctor. Good luck!