"Disgrace"

I've been in to Broomfield A&E 3 times in the last month complaining of really bad abdominal pain and i have also been throwing up after all my meals. I got the usual checks and was sent home after 4 hours each time. Im at the point now where i have severe pain which makes me faint and when i went back the 3rd time they said It looks like I may have an inflamed bowel and Didn't really know why and they said I need a colonoscopy to see Whats wrong with me. So I was expecting to get transferred to a specialist to help me but because nothing showed up in my blood test, I was sent home. Very disappointed and feels like no one is willing to help so I am now going to go to another A&E to see what response I get from them.