although a doctor would be the best option,
until you have the means you could try a couple of things to try and ease the symptoms.
sounds like you got some acid going on,
you might find that upping your alkaline food intake helps
http://www.rense.com/1.mpicons/acidalka.htm list of alkaline foods
if you chew gum...don't! it creates the sense of food coming and your stomach starts preparing acid for digestion.
cut out caffeine, if you use normal milk then maybe swap to goats or non dairy
dont take brufen based painkillers.