Hi, couple of weeks ago suddenly i wasnt able to taste anything i felt like having thorns in my tongue. Later i felt inflammable feeling when i have food or snacks( even it is not spicy felt like spicy and hot). Since one week, i am having bubbles with pain in my tongue.Not much just 1 r 2. sometym in the uuper tongue and next day in the lower tongue. But one by one. can any one tell me what is this? do i have to worry.