I'm waking up really early in the morning and almost immediately start coughing. I went to see the doctor, and they told me everything seems fine, even my CT scan was clear. I'm starting to think that maybe it's because I'm swallowing my mouth water before I brush my teeth. Could that actually be irritating my throat and causing me to cough? It's strange because no one else around me seems to be having this issue. Is there something wrong with my mouth water that's causing this? I'm just a bit worried and can't figure out what could be happening.

Thats unusual,visit General Physician for appropriate approach.and maintain balanced diet and healthy lifestyle