I have been sufffering from gastric problem for the past couple years. Aged 39 yrs. This happens if i eat food which doenot agreewith my stomach like potatoes , pulses, any products made of refined wheat, gram flour, spinach . Despite avoiding these items more often i suffer from this . Ihave taken both ayurvedic and allopathic treatment but no relief. Sometimes it accumulates inside my stomach, head back of my neck . I get severe headache and at times flashes of light occur in front of my eyes. Is there any cure for this?