I have got headache frequently . sometimes i got shaking and cold without fever. what do i have? thanks

Not enough info!: How long have you had these symptoms? What other health problems do you have? How bad are the headaches? As you can see, there is not enough information to give you a good answer. But new headaches are always concerning and should be evaluated by your doctor. Or you can consider Healthtap Prime for a 30 minute consult with a doctor by video or text (this is not free but it is reasonably priced

Common ... cold?: Upper Respiratory Tract Infections are very common and typically viral and self limiting. See http://patient.info/health/common-cold-and-other-upper-respiratory-tract-infections for more information. If symptoms are worsening after 2 weeks, or you develop fever, breathlessness, or productive cough see your GP for review.