For about a month after everything I eat I get a stomach ache that develops after about 45 min to an hour and won t go away for about 2 hours or more. Sometimes they aren t so bad, but sometimes and more often they are severe stomach aches to the point where I can t even move. I ve been eating nothing but gluten free and dairy free foods and that seems to have no harm on my stomach. I am a vegetarian already, but this month I ve been having to go vegan for this whole month because anything nonvegetable or has gluten, dairy, and even fruit will cause me to have a severe stomach ache. I ve tried looking online to see what it could be but the possibilities for what it could be are endless. I ve been taking anti acidic medicine, probiotics, and fiber vitamins and it doesn t seem to help very much.