Dyspepsia is a general term, which refers to inflammation and discomfort in the stomach and digestive tract. However, not all such symptoms as you describe can be explained away by this knowledge. There are many factors, which can only be explained by a physician upon examination and additional information.
There are many over the counter products, which people use on a temporary basis to soothe such symptoms. Any prolonged symptoms, however ought to be brought to the attention of a primary care physician.
There are a number of diseases related to the bowel, which can only be determined by appropriate labwork and testing.
Such symptoms when accompanied by fever, pain, diarrhea, chronic bloating and the like can be a sign for greater concern. Only, a physician can correctly diagnose and give appropriate treatment of both minor and serious illnesses.
I encourage you to see a physician in the near future.