Haven't eaten all day, don't feel hungry, feel sick and burp and horible burp when i eat and it's horrible, i'm scared, can stress cause this feeling?

Yes: These symptoms may be caused by anxiety or stress. Try a light diet. Also try not to force yourself to burp as this only causes you to swallow more air and cause more belching. Instead eat a fat free,light diet and take mylanta after meals to prevent gas buildup.Drinking flat ginger ale helps settle your stomach. See your MD if symptoms persist.