I have a hytas hernia Cain it cause upper abdomen pain like I am having especially after alcohol because all the internet says is back and chest pain?

Yes. Most of the time the discomfort is in the mid upper abdomen. In your case reflux itself would cause similar symptoms. Aside from hiatal hernia, a variety of other medical conditions may account for your symptoms, including but not limited to gallbladder disease, intrinsic gastric/ duodenal pathology or liver disease. Cut on alcohol and monitor your symptoms. If persisting mention them to your doc.