I am 64 yrs can t and mouth 60% since June ,14. In May,2014 I caught with cold and then nasal sound became abnormal and feel echo when I speak word e.g. no, now etc. After treated by ENT with antibiotics and steroid for sinuous .OK now but I feel tenderness my right jaw and sometime I fell a little pain near ear opening, right side of neck and head .I never use tobacco or alcohol and a vegetarian have sound health. I walk 3 km and yoga for 30 minutes daily. Pl help