Brief Answer:
Indigestion with acid disorder called dyspepsia all are related.

Detailed Answer:

Hi,

I have gone very carefully through your query.
Our gastrointestinal tract has a forward propulsive movement (peristalsis) that moves the food material forward as it is digested, absorbed and finally expelled as feces. If somehow this movement gets hampered, food along with the digestive juices would stagnate, stomach acid will reflux into the food pipe causing sour taste.This refluxed acid irritates the mucosa lining of intestine and would cause cough as throat problem secondly on the other hand the bowel habits would not be proper. Degradation of undigested food in the intestines by the intestinal bacteria would lead to the excess gas formation.

Tests suggested are-
High-resolution esophageal manometry. Using a catheter inserted down your esophagus, muscle contractions in your esophagus are measured when you swallow water.
Endoscopy- To visualise esophagus and stomach.
Now lets move on to burping problem-
Excessive burping is suggestive of improper digestion of food.Our gurt consists of thousands of bacteria and yeast termed as microbiota of gut.This microflora plays a very important role in proper digestion of food.These bacterias and yeast are responsible for proper digestion and fermentation of food. However in patients having acod reflux this good flora is depleted hence food is not properly fermented leading to production of excessive amount of gases.This gas formed can leave intestine either as burp.Mixed with acid it tastes sour.

So as per the above explaination all the problems and symptoms are linked to each other.
Please request your gastroenterologist to start you on PPI-antacids like Rabeprazole or Esomeprazole. Esomeprazole can be used in the dosage as high as 80 mg twice daily.Trials have shown that esomeprazole is superior to other PPI's in controlling reflux symptoms. Also, request him/her to add Domperidone 30mg or Levosulpiride(both are prokinetic)slow release once daily. This will slow down the reflux of acid back.Prokineic should be added in your regimen.

An antacid containing local anesthetic (Mucaine gel ) should be taken 2tsf thrice daily.

Acotiamide is another wonderful new drug and is very effective in controlling symptoms of GERD and esophagitis. In trials- Acotiamide, a gastrointestinal motility modulator, at a standard dose of 100mg thrice daily has significantly affected esophageal motor functions or gastroesophageal reflux in healthy adults.
General precautions-
Avoid-
Dairy products, which contain sugar lactose that causes gas.
Vegetables, including onions, radishes, cabbage, celery, carrots, brussel sprouts, broccoli, cauliflower and legumes.
Fruit sugar, which is especially high in prunes, raisins, bananas, apples, apricots and fruit juices from prunes, grapes and apples
Fiber.
Fatty foods and carbonated drinks.

Try Eating more fermented foods. These are rich in both good bacteria and enzymes you can try raw natto kefir or cultured veggies. This is probably one of the most important first steps.
Take a high-quality probiotic.
Take external enzyme supplements.
Exercising, to help keep food moving through your system.
Using spices that may help to prevent flatulence. These include turmeric, coriander, peppermint, fennel, sage, chamomile and ginger.
Hope i was helpful.
feel free to follow up.

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