My 4 year old always complains of being cold and headaches. She has been diagnosed with sensory issues, more oral and loud noises. She has been tested for lead, diabetes, thyroid issues, x - ray for sinus issues. We have an appointment for and eye exam tomorrow. I suffer from migraines and it runs in my family, Can 4 yr olds get migraines? My dad had brain cancer for many years. Any other advice you can give me?