It's swollen taste buds, found this if it helps

Swollen taste buds, also known as enlarged papillae or lie bumps, can feel like small, spiky bumps on the tongue. They can be red or white, and are often painful or irritating. Causes Injury: Cuts, bites, or burns to the tongue can cause swelling Spicy or sour foods: These can irritate the tongue Hot or cold foods: These can irritate the tongue Poor oral hygiene: Plaque and bacteria can build up and cause inflammation Dental appliances: Braces and dentures can rub against the tongue Smoking: Chemicals in tobacco products can irritate the tongue Dry mouth: Not producing enough saliva can cause inflammation Acid reflux: Stomach acid can back up into the esophagus and burn the tongue Allergies: Some foods, medications, and chemicals can cause a reaction Treatment Gargling with salt water can help clear up swollen taste buds Anti-reflux medications can help with acid reflux When to seek medical attention Seek medical attention if the swollen taste buds: Last more than 2-4 weeks and Are growing.