hi i had gone through your query and understand your concerns. i would come up with the possibility of APTHOUS MOUTH may be the cause for your sufferings.
possible causes include;
or tissue injury is thought to be the cause of simple mouth ulcers.
-Certain foods, including citrus or acidic fruits and vegetables (such as lemons, oranges, pineapples, apples, figs, tomatoes and strawberries), can trigger a mouth ulcer or make the problem worse.
-nutritional problems, such as vitamin B-12, zinc, folic acid
, or iron deficiency
and gastrointestinal tract disease, such as Coeliac
disease and Crohn's disease are the other cause
i advise you taking Homeopathic
medicines gives safe and permanent cure for your complaints
consult your local homeopathic physician for correct diagnosis of the case and remedy to fit your complaints
I hope this is helpful for you, thank you