I need some help.

I have restless legs and arms, severe agitation and irritability, pins and needles feeling in my arms and sometimes my face, sweating, pounding heart, forgetfulness, a little slurred speech at times, nausea, and dizziness . I've had every blood test in the book done and everything turns out fine. After I eat, these symptoms get better but not perfect. Can anybody relate? I've been to numerous doctors and they can't find nothing wrong with me. Is this from too much insulin? My blood sugar is around 92 and my other is 5.2. Desperate for help. Also, when I get these symptoms if I take a multi vitamin things will get better with in an hour or so.

Thank you!