Around 2 months ago I started getting a sore throat feeling for a while went to Doctor who took a throat culture, negative results. Then upper gum around front teeth and upper palete felt irritated but I couldn't see anything. Went to ENT doctor who examined me thoroughly saw nothing but told me to take vitamins with minerals, and to have my doctor see if I had anemia and change my high blood pressure medicine. Results of blood test No anemia, and change blood pressure medicine. Saw my dentist who examined my mouth, saw nothing . What is causing irritation is baffling me. Any answers would help me immensely