I had gastric bypass and the hole in my stomach keeps closing up i can't eat or drink what is the problem always in the hospital?

It sounds like you may be experiencing a complication known as a stricture, where the opening created during gastric bypass surgery narrows, making it difficult to eat or drink. This can lead to symptoms such as nausea, vomiting, and dehydration. It's essential to consult with your healthcare provider, as they may need to perform an endoscopy to assess the situation and possibly dilate the narrowed area. Frequent hospital visits indicate that this is a serious issue that requires ongoing medical attention.