A year ago I was able to sing what I want and my voice was nice. One day my voice changed and did not come back. 3 doctors checked my vocal cords and other things, and all results were good (I also did a C.T scan). No one found the issue why my voice has changed and why I can't sing anymore. So is it because of a bad technique or will I lose my voice forever?
A Demo 1 year ago: https://drive.google.com/file/d/15wd59VJf8f0k7lhZeLf6PT7tdvH7CA6v/view?usp=sharing
Today Demo (Unpleasant to hear that) https://drive.google.com/file/d/1AG78zFhdmHPZqpS6mORmXv7Un4eVNWv2/view?usp=sharing