Unmoving Vocal Cords

Ok. I'm not sure how to describe this but it feels like only one side of my vocal cords will vibrate when I sing or talk. Today its my right side. The left side just feels stationary. I don't know what could be causing it but when I usually feel like I'm on breathing out of one nostril but today its just my throat. Could it be the extensive amount of dust here in Iraq? Since I have recently tried to improve my singing i feel like there's a gap in octaves or whatever they call it. Like I can hit normal notes and really high notes but somewhere in between disappears. What do yall suggest?

[hinges]

could be unilateral vocal fold paresis. (partially paralyzed vocal cord) it can go away on its own. can take a few months to a year. see ear nose throat doc specializing in voice.
good luck and take care!!