i started having blurry visions followed by a left sided headache that would not go away for hours even when i took painkillers and vomiting when i eventually eat. the dr. said its coz i was not eating well so i started eating after at least a 3hr interval.I realized some foods like kales, coffee. tea leave, greengrams and beans brought the headache.I was given antacid prescriptions which when i still take during he headaches do not seem to work. I took a h-pyloric test and it came out negative, blood sugar level is also ok. I thought it was ulcers but with thr negative tests i dont know what to think.