When i suffer from laryngitis i can't do anything. it is so painful and horrible, i think i'll turn crazy. is that normal?

Yes ,especially... : It is normal especially among young people. Since laryngitis can take away one`s ability to communicate with others, one may some times have such anxiety like you are experiencing. Young people feel that their world is crumbling whenever they suffer from acute medical problems even of minor variety. As they get older and older such fears & anxieties get reduced.