Gastritis with no apparent cause

Hello,

Im 20 male and have been completely healthy until 3 months ago. After doing a gastroscopy ive been diagnosed with gastritis. h pylori tests came back negative. Ive also done a colonoscopy and ct. Ive been given Omeprazole which helps me sleep since it stops the bloating. The doctor doeant know what caused the gastritis (not taking pills /alcohol).

I have a few questions: Does the gastritis itself cause bloating, or high levels of acid which cause gastritis(Im trying to understand if what caused the gastritis is still there since I dont know what that is). Secondly, a few days after taking the Omeprazole I started having a feaver and acute diahrea. Ive been told that its not related but its been a few days now without change. Can Omeprazole cause this?  And lastly your opinion on the treatment given to me: To simply take Omeprazole for a few months and see if it helps. I dont understand - if I still have bloating isnt the cause of the gaatritis still there? What do you think it is?

Thanks.

[patient915]

Welcome to the gastroenterology community!  You can have idiopathic gastritis meaning that no cause is known.  Omeprazole is most likely not causing this.  I would recommend talking to your gastroenterologist about this.

[lucygvt1996]

I am just 15 years old and have suffored with abdominal pains for over a year now. Finally I have been referred and diagnosed with possible Gastritis. Despite my H-Pylori test being negative, my paediatrician told me that it was still a possibility. After taking the given medications (Omeporazole, and 2 antibiotics) I still find no relief from my symptoms. I am underage and ultimately do not drink, although stress from GCSE exams is a possible symptom. I have a sick/bloated feeling in my upper abdomen, causing me to feel the need to burp/be sick but am able to find no relief. My next hope is having a camera down to see what the real problem is. Any advice?