2010 MacBook Pro 13" Sound lost completely?

All of the sudden my sound has stopped to work, when I click on the sound icon, the volume is all the way down and is locked. The volume buttons when pressed, do the same thing, the volume icon has a circle and a dash inside it. When I plug in head phones, the same thing no sound whatsoever.

Under system preferences/sound/output it says that there are no output devices found, and the Input devices same thing no output devices found, and the output volume at the bottom of sound preferences is shown as mute, and mute cannot be unchecked.

The only way that I can make my sound work is when I use my bluetooth headset, the the device is recognized and I can here any sound through there, otherwise all sound in my computer is dead.

Please help me, I do not know how to fix this.