@argr thanks for the advice. migraines aren't actually the main issue I have, it's screen and visual processing intolerance leading to headaches, nausea and eye fatigue. I don't often suffer from the kind of sound/light sensitivity that typically characterize migraines, and don't think I've ever experienced the classic "aura" that people describe. I have doubts that cutting artifical sweeteners would help but maybe it's worth a shot. For the time being I think I'll get my blood tested and talk with my new doctor about what options are available to me. it sounds like she's going to have some diet and exercise regimen which I am going to hate and have a hard time doing because I am NOT a disciplined guy