Almost 10 months ago I had a common cold and cough. While the cold resolved the cough lasted a bit longer but resolved eventually. Since then my throat hasn't healed. I also sing and I noticed that pushing my voice at times Worsened the condition. I don't have a cough, mucus or any other symptoms now but my voice has become husky, and no longer has the same clarity and vibrancy it feels like something is constantly blocking it . Is there any problem in my vocal chords or what is it ?