I have had persistent headache and nausea for the past 3 months. I have blood/urine tests, an ultra sound on my stomach, gastroscopy done - all with normal results. Also, I do not have hpylori. Doctors do not know what is wrong with me. I have to take a Gravol everyday to help me. However, I am getting worried and frustrated as I do not have any idea what is the cause of this/how I can get better. This is having a really negative impact on my quality of life.