I am a female, age 55 and have had problems with headaches since around age 20. I have headaches that seem to revolve around the barometric pressure but not always. I have had a headache now for three days. When these headaches occur and become unbearable I close my eyes and see bursts of color usually purple and green. I've seen doctors in the past but no help. I've been give migraine medicine but this hasn't helped either. Any suggestions?