My son has been having tingling in arms and legs. He describes it as shakiness but it is not visible tremors. He also has a headache. He is a diabetic but his blood sugars have been fairly normal. His blood sugar was elevated yesterday for awhile though. It is a fairly constant feeling he is having but not always a headace. At times the shakiness/tingling seems better but he feels it just a little and sometimes very badly. I took him to the pediatrician but she did not really know. She thought that it may be a virus causing his legs and arms to feel this way. She thought he should feel better soon but has not. He has missed all week of school because of this. His checks are brightly flushed also.