What Causes Swelling In Throat Along With Abdominal Pain And Diarrhoea?

I have been getting ill about every 3 months and it starts with almost an allergic reaction such as my lips, tongue and throat swelling, stomach/abdominal pain, profuse sweating, vomiting and diarrhea until all that is left when I go to the bathroom is mucus w/red blood in it. It lasts for about a day and then I'm just tired feeling. I sleep a lot the day afterwards and then feel fine.