“Why do I have a loss of taste my mouth?”

This definitely warrants seeing a physician. Patients can have a loss of sense of taste from inflammation or infections of the tongue, post-viral loss (e.g., COVID-19) or due to sinonasal infections/blockage/tumors (rare).

See an otolaryngologist for a work-up.

For the most part, a perceived loss of taste is actually a decrease in your ability to detect “flavour”. If you can still tell the difference between salty, sweet, sour and bitter then your taste is fine. The most common reason for decreased sense of flavour is due to decreased sense of smell. Those reasons could be congestion from allergy or head cold, polyps, or other causes.

Sense of test can be affected by alteration in sense of smell, colds, inflammatory substance exposure (alcohol, smoking or ingestion), antibiotics and other medications, cranial nerves 7 and 9, bilateral sensory innervation. Would be unusual to completely lose sense of taste, more likely lessened.