Past year i had 6 episodes of waking up middle of night with stomach pain followed by hive. food allergy test negative. tryptase normal. whats wrong?

Allergist: Are you being evaluated and treated by an allergist? Hive like reactions or angioedema can also occur in the intestinal tract and I suspect that this is what causes your abdominal distress. The cause of your allergic reactions can be very elusive and a skilled allergist is best to help you find a cause. Keep a diary of what you eat to see if there's a common denominator. Atarax may be effective.