I normally get a little shaky and light headed when I don t eat..but lately it seems like it is happening more regularly. My doctor ran a bunch of test on my blood at my last visit and he said everything looked fine...is there something he might have over looked? I eat pretty light, limit my coffee intake, and almost never drink any soda. I am a 29 year old female. I am also on 27 mg of Concerta but other then that, I am in good health. My sister freaked out when she seen how shaky my hands had gotten and now it s got me really worried. My grandma is the only one in my family to have diabetes so I m not too sure if that makes a difference. I would really like to know if I have to direct my doctor to check for something specific?