The symptoms you reported (stomach gargling, tiredness, recent tooth extraction) are not specific enough for any definitive diagnosis to be given.


The most frequent reason for stomach gargling is gasses. Gasses might be ingested when eating too fast (aerophagia is a condition when you swallow air together with food). Gasses caused from aerophagia tend to stay in the upper gastrointestinal tract and might cause a feeling of fullness in the stomach or upper abdomen.


Excess gasses might also be produced by faster degrading of substances in the intestines. The presence of more bacteria in the intestines might cause the faster degrading. Certain foods tend to produce more gasses when degrading. Constipation that affects the normal flatulence as well might be a reason for excess gasses in the lower gastrointestinal tract and subsequently for abdominal gargling.


You might want to visit your family doctor and have your physical examination. A stool examination (stool culture) might be recommended. If the doctor cannot identify the cause, then you might be referred to a specialist for internal diseases for further examination (abdominal ultrasound or endoscopy).


Meanwhile, you might want to reduce the gargling by taking medicinal charcoal which might be able to absorb a little of the excess gasses if they are the reason for your present condition.