The cause for your case may vary. It can be 》COVID-19 : About 80 percent of people who test positive for COVID-19 say taste or smell has been affected. The reasons aren’t entirely clear, but it may be related to congestion or inflammation in the nose. 》A cold or a flu : which can cause nasal congestion, coughing, and sneezing.  》Allergies, sinus problems : Allergies and sinus infections can cause inflammation and congestion, which affects smell and taste.  》Nutritional deficiencies : Certain nutritional deficiencies could minimize sense of taste. For example, zinc is vital to your senses of taste and smell. You’ll probably get enough zinc through a normal, varied diet. Zinc is found in chicken, red meat, and fortified breakfast cereals. #To generalize, visit a doctor and try to find out what was the cause for your situation! Tnx