I have been having a loose stool for the last two days. In mongolia?

Diarhhea. Traveller's diarrhea is cery common... Prevention is with good hand washing, clean water and good food hygiene. If you have diarrhea it usually lasts a few days and you need to hydrate and replace electrolytes. If it continues or you notice it is bloody, see a local physician.
Need to see MD. Keep well hydrated, see physician as you may need stool studies to determine if there is an infection.