I have been experiencing jittery (like you feel from caffeine) when I eat certain foods. I only drink decaf coffee, herbal teas (no caffeine) & soda with no caffeine. But when I eat something with alot of sugar, chocolate or decaf coffee I feel jittery. Yesterday, I ate a chocolate pudding cup (which I can eat 2 at a time) & began to feel jittery. I can't think about drinking a cup of decaf because the affects are worse. I have never felt this way eating these foods. A friend told me this is one of the symptoms of pregnancy. Has anyone ever felt this way while pregnant? Thank you for your input.