An unwanted bitter taste in the mouth may be caused by GERD or acid reflux. The most common symptoms of gastroenteritis are vomiting and frequent episodes of diarrhea that occur three or … They include headache, upset stomach, a bad taste in the mouth, and an irritated throat or mouth. Giardiasis. A funny taste in the mouth goes beyond abnormal taste sensations when tasting something. A zinc deficiency can cause a bad or metallic taste in the mouth. Gastritis may cause a metallic taste in your mouth; this disorder involves inflammation of your stomach lining. When we experience a bad taste in the mouth it is known as cacogeusia. An asthma inhaler. If your taste sensation is disrupted, the medical term is dysgeusia. Dysgeusia refers to a distorted sense of taste; anosmia is smell blindness. Iron tablets can cause problems like abdominal pain, cramps, constipation, and diarrhea. Symptoms of diabetic ketoacidosis include dry mouth, excessive thirst and urination, and more. » Upset stomach. The taste in your mouth may be due to acid reflux. If the backwash of stomach acid rises all the way to the back of your throat or your mouth, it can cause a sour or bitter taste in your mouth. The stress response affects the stomach … A Bad Taste In Your Mouth All of that acid coming up can also create a bad taste in your mouth , according to Amanda Gardner on Health . Also, speak to your doctor if your stomach feels sore or you get sharp pains in the abdomen. You may develop an unpleasant metallic taste in your mouth after taking a dose of vitamin D. This side effect may exacerbate upset stomach symptoms and can contribute to a … Infections or illness. For many people, the nausea -- and even vomiting -- can occur just from the bad taste. 4. “In some patients this may taste a little metallic. » Hoarseness. It might also cause nausea (3) Consuming ginger root in excess can cause stomach upset and a bad taste in the mouth. These strange tastes may however be emanating from the body itself. Often you don't feel the actual heartburn, it is called silent heartburn, and just feel the nasty taste. 3. Gastroesophageal reflux disease (GERD) or acid reflux may be the source of an unwanted bitter taste in the mouth. » Chest pain. » Difficulty with swallowing. Poor hygiene and dental problems The most common reasons for a bad taste in your mouth have to do with dental hygiene. A white tongue and bad mouth taste are one of the first symptoms of gastritis. Does your belly feel swollen? When you get sick (with a cold or sinus infection, for example), your taste buds … Apart from saliva which we feel but do not taste, there a host of other substances and secretions from the body that can stimulate the taste se… These are usually other symptoms associated with the inflammation of the lining of your stomach, also known as gastritis. Some inhaler side effects may be more severe, though, especially for older women and those who have bad asthma. The buildup of harmful bacteria can alter the flora in your mouth, which can lead to having a bad taste in the mouth from the growth of bacteria. Dr. Lacy says that this waterbrash “results from acid refluxing into the mouth and stimulating the salivary glands to make a bicarbonate-rich fluid. Other people may find they are more sensitive to extremely sweet or salty tastes when they are … People often describe the taste as bitter or acidic. » Sore throat. The condition can occur due to a possible infection, a stomach irritant, a problem with immunological functioning, or an overproduction of bile that backs up into your stomach. Do you have gas, stomach pain, nausea, diarrhea or a lack of appetite? Constipation Or Diarrhea. Symptoms. Illnesses and infections. I would try taking prilosec or prevacid for a month or two - start with twice a day and then you can go down to once a day. Heartburn, constipation, and diarrhea can occur, too. » Burning or pain associated with heartburn. Gastroenteritis refers to an infection of the stomach and the intestine. But you must also look out for other symptoms. Most inhaler side effects are thought to be relatively mild. Not flossing and brushing regularly can … But there can be other symptoms as well, as WebMD reports:() » Dry mouth. Metronidazole side effects are notorious for causing an upset stomach and killing your appetite. 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