<s>[INST] Hi, the area under my tongue is looking strange, it s like it s another flap that s going on under there. I know I have eaten salt and vinegar chips twice in one week so don t know if that irritated the area or not. Just feels weird, no pain really, just weird. [/INST] Hello, Thank you for consulting with Chat Doctor. It can be possible that because of these vinegar chips, there might be an ulcer on the floor of the mouth below the tongue. And now because of this ulcer you have this weird feeling. So better that you wait for some time if it does not heal within 1 week then you have to visit a good dentist or send the photograph of the lesion. Hope it will help you. </s>