Concerned and confused

I have had ongoing abdominal pain for over a month now with other symptoms such as: losing weight whilst unable to exercise, feeling full when eating very quickly, night sweats and extreme fatigue. I have been backwards and forwards to my GP and my local hospital. I had a MRI which didn’t show any abnormalities. My WBC count and neutrophils were raised but other bloods all fine. I’m concerned it’s something more than just “abdominal pain with no real cause”. I’m also struggling to be heard and listened to without feeling like I’m a fraud from medical professionals which as a medical professional myself is upsetting. I don’t know what else to do.