In 2015 I had a skin surgery with skin graft applied. I was given Keflex for 10 days. Ever since I have bloating, hiccough, no pain no nausea, excellent appetite, weight gain, stools of parasites, oc. Blood and culture,negative. In January 2018 I started on Zantac 150 mg daily with no effect. Presently I take Aloe vera juice, oats, apple cider vinegar ,with little effect. And they did test for Ca 125, abdominalltrasound, all negative. Friend takes slippery elm caps. Should I? Than you.