When I eat the after taste of some foods is pungent. For example: after I drink thumbs up or sprite the after taste of those is very pungent like burnt dish . Egg smell is unbearable for me. Mostly while eating food with masalas this change in smell. And Onion is also unbearable. Eating the food is fine but the smell and after taste due to that smell is my problem I dont have any problem in my body my intake and outlet are fine. No change is color or anything. Can I know what type of disease or illness is it. Or any test I can take to the exact name or diagnosis of this disease or illness. Note: I am Covid negative, I never had Covid and I am vaccinated also.