I have almost 2 months persistent shortness of breath. I did EKG, spirometry test, X-ray chest. All tests were normal. My shortness of breath isn't accompanied by wheezing, cough, fever. I feel dizzy, difficult to concentrate, weak/fatigue, sometimes I have difficulty to sleep and sometimes I my gums is bleeding when I brushed my teeth and also nauseated.
Could it be hyperthyroidism or something related to thyroid disorder? If yes what kind of test should I take to diagnose this problem? Then what is the treatment?
Thank you very much