I shouted very very loudly 4 to 5 times and my instantly I lose my voice temporarily, not completely mute ,my voice became very low and abnormal .but the next day my voice became fine. But I started feeling something stuck on my throat and facing difficulty swallowing saliva. My voice tone has changed a little bit and was not coming out loudly and clearly like before. My voice is not coming out loudly and is not deeper like before .and if I force it to come out deeper I feel tightness and pressure on throat .my voice is now I think low in volume and and a little bit change in pitch .i am also facing difficulty in pronunciation also. Its been 28 days still I am unable to talk like I used to before. So is my vocal cord permanently damaged? Or it will be cure after some days automatically?