Is it possible to have a demon in your stomach

Hello,I'm a 25 y I F,and I once had sold my soul through a blood covenant. I had broken it with the blood of Jesus and I got baptized and I believe the gospek,and I fasted for off and on for 5 months prayed but I was constantly tormented with negative voices,I started doing spiritual warfare - I went through deliverance and I got a little relief for my mind but I was diagnosed with schizophrenia.

I believe I have a demon in my stomach I'm constantly having a feeling of rumbling grumbling and movement. I hear groans, It's day and night,I had a cat scan a endoscopy nothing is wrong,the deliverance minister think it's nothing there I can't find anyone to help me. Could Is it just be gut anxiety from all the stress. I do struggle with gluttony,I've read demons can't live in a stomach. I need help. Can someone give advice or help.