hows about a little more detail? like time of day? food or no food in the stomach? does it happen when you asleep waking you up in the middle of the night? time between supper and bed? history of peptic ulcers? phases of constipation to diarrhea? cholic ? pain (not burning discomfort proper stabbing/throbbing pain)? type of foods?
I would say review your diet first, as this is the most important. Have your smallest meal before bed.
Before you run for nexium which is very expensive consider this, your problem is probably diet releated and can be solved with a simple lifestyle change. If it is diet related nexium and PPIs will not help you as there is nothing to heal, they are used to decrease the amount of acid in stomach so that tissue can repair itself and resume normal function.
I would say just use an antacid for symptomatic relief, if you can find it Propan S is the best (however its been discontinued why I have no idea) if you cant use rennies/gelusil or enos. Dont waste your time with super expensive antacids thats all rubbish. I never recommend gaviscon to any of my patients its over expensive and does the same thing as a R7 bottle of antacid, the only difference is the marginal better taste.
If you wish to do the PPI route make sure you do it only once you have tried the above and start with a 2 week course of lantoprazole (lantosec OTC - one does not need a script for it its s2). If that still doesnt work
THEN you will need a full course of nexium and or a endoscope to investigate. However if you can stop it before that with what ive suggested it will set you back less than R100.
However all of these medications will be temporary if you
DO NOT REVIEW your diet.
Also are you taking other medications at the moment there are drugs that interfere with the stomach lining causing problems like this, even supplements for training can irritate the GI. Creatine is notorious for this.
spoonful of tumeric in warm water with lemon 3 times a day. It isn't a pharma drug so people will say it's rubbish but it sorted me out. Some people however it makes it worse but tumeric is the spice of life.
valid to an extent. The GIT responds directly to what you eat.
Go for a gastroscope examination, you might have a hernia.
Also there's a difference between acid reflux and heart burn.
never go to a specialist unless refered to by your GP that knows everything otherwise you will be starting another "doctors fee rant" thread. Though yes this can be a cause, as well as malfunctioning sphincters. Unlikely though and dangerous to make these types of assumptions with so little information - all it achieves is to panic the patient more exacerbating the issue since stress can be a very real factor in GI discomfort
EDIT:
I forgot about the h2-antagonists. Try ranitidine (zantac) 150mg twice daily for 2 weeks before going on the PPIs