hi, it is now past 2 years that i am suffering from oral ulcers. my dr. sd it mite be body heat or deficiency in vitamins! i have taken medications for both(ayurved for body heat n becosules for vits.), nothing seems to work! the time span of ulcers in mouth has now increased from 3-4 days to 6-7 days, very painful, also i witnessed mild fever recently! is all this normal or otherwise? pls suggest. is water contaminated with something- say heavy metals capable of doing this?