My mother is 79 years old - has been perfectly healthy her whole life except for mild thyroid disease and B thalssemia carrier. Six months ago she developed shortness of breath with and without exercise and a reduction of saliva secondary to it and then lately pressure from tip of tongue, tip of nose and forehead with blurry eyes. Everything from chest xrays, echo, CT scan, and blood tests are all normal! She has been cleared from Sjogren s, pulmonary emboli, cardiac issues, hypertension ... all clear! any suggestions?