A18 STRESS TRIGGERS LOSS OF TOLERANCE TO FOOD ANTIGEN CAUSING HISTAMINE MEDIATED NEURON HYPEREXCITABILITY IN A PRECLINICAL MODEL OF IBS. - Lopez, C D Lopez; Polanco, J O Jaramillo; Yu, Y; Vanner, S; Berin, C; Reed, D E (Journal of the Canadian Association of Gastroenterology, 2019)