Hello, Evaluate your diet and try to eliminate foods that might contribute to this condition. Rule out any deficiencies or excesses in your diet and maintain balanced vitamins. Make sure that you have had blood tests to rule out systemic factors. Diabetes is known to have as associated condition that changes your breath due to ketone production. Bacteria studies of your oral environment may show an imbalance in your oral flora. I generally do not do this during routine dental exams. Consider visiting a periodontist to further evaluate tissue and bone health. Your comments concerning the throat describe the possible condition of tonsil stone formation or tonsilloliths. You have consulted the correct doctors. Continue to try and determine specific triggers. Tank you for your inquiry. I hope my suggestions are useful.