I am 23 yrs old male,my tongue was always pain  on edge sides of my tongue before 1yr becoz of bite cut on it,,by sharp teeth n then after check up in hospital i was refer on dental clinic and fitted perfectly by reducing sharpness taking medicines and I was cured but after 3 month again i fell pain normally without biting my  on left edge tongue then I started taking revoflavin.,,b complex tablets,, mouth gels etc n then i was cured n again it starts causing pain on another edge side of my tongue without bites or cut on my tongue ..(i don't hve any problem on my tongue,ear,nose,mouth,teeth,face n i don't hve health problem but I am thin)......then starts consuming rivoflavin n then cured n then starts again n again i don't no what 2 do.. please help me.......