Why does my legs feel weak and shaky? my body is trembleing, i barely sleep at night, cant concentrate, nausea,

TryTheTalkingCure: These are pretty classic signs of anxiety/nervousness or something that causes it besides psychic upset(like thyroid problems).Sometimes can be the side effect of a medication or combination of medications-but most commonly it's from some inner turmoil or conflict or fear of something.Lasting long enough it can really drag you down and cause other medical problems,so see a doctor or counselor soon

Anxiety: A chronic anxiety state is likely but a checkup with your Physician is needed to rule out thyroid disease,anemia,etc. Your physician may refer you for stress management therapy and possibly prescribe a mild tranquilizer for a limited period as well.