I am 23 years old, my CBC, LFT, RFT, THYROID, LIPID PROFILE, ELECTROLYTES TEST, ENDOSCOPY, ULTRASOUND, CHEST XRAY,ECG(Sinus tachycardia) ,HIV , HBsAG , Random Sugar  all tests are normal , but still having problem in Deep breathing problem or in deep yawning ,( No addiction of Smoking or Alcohol ) and consult with 3 pulmonologist,they check with stethoscope and say all are normal , then why I having a problem in Deep breathing or yawning, please reply me sir please