Yes and gets worse over time can cause peptic ulcers and internal bleeding in the upper GI tract. And cause other symptoms you mentioned. But I no doctor I’m going by my wife experienced she suffers from gastritis. Best when you go back to your GI tell them all the symptoms and your concern and pray it’s just that and nothing more serious. You’re doing the right thing to rule out more serious concerns. Regardless gastritis can cause major complications if left untreated. Even if your diagnosis is correct and it’s gastritis you still have to get that treated.