hi there, sorry for your condition but also have to say that you have been able to maintain your blood sugar levels at a fairly controlled level as your HBA1C
levels suggest. The burning sensation while urinating could be due to a smouldering infection . Do get your urine examined for microscopy and culture to rule out infection. You could be treated with a course of anti-biotics for the same and will show much improvedment inyour symptoms.The bad taste in your mouth is a side effect of metformine therapy and use some mouth freshner or gum to ward off the same. Take care.