Effect of food coming back up from the stomach when one is fasting
Question

                I have a problem in my stomach that makes food come back up when I have some liquid in the mouth, and this happened in Ramadan. Do I have to make up that day?.
Praise be to Allah.
      If something comes back up out of the stomach into the 
      mouth, then the fasting person must spit it out; if he deliberately 
      swallows it, his fast is invalidated, but if he swallows it without 
      meaning to, he does not have to do anything. 

    Standing Committee for Academic Research and Issuing Fatwas