Suggest Treatment For Headache

Hi I am having serious eye headaches and feeling semiconscious all the time... I get tingly feelings in my arms face and neck and I get dizzy when I stand up. This happens on and off always in the evening sometimes for weeks at a time and sometimes I feel "toxic" like theres poison in my veins or something, although its just a feeling. I am also rarely hungry or thirsty although when I have a headache and drink it helps the headache but makes me nauseus. I have never thrown up because of it though. I have had this problem off and on for years and no one has ever given me a straight answer. When I sit up or stand other times when I don't have a full on headache i see flashes of light, and when I get dizzy I lose consciousness but I never pass out, by that I mean I'm still standing when i come to. I also notice that it is really hard to relax my eyes and forehead but it helps somewhat to do so. Also when I am very rational in thinking it helps bring on the headaches but when I think less and am more emotional it helps them subside.