HELP! Dell xps 9343 No Audio anywhere!

Hello everyone. 

I've never really made a post on the forums for help but I'm at my wits end with this audio issue and I'm normally pretty good with computers!

I noticed there was a problem as youtube videos suddenly stopped working when I was using the laptop to follow some CAD tutorials, they were completely black screens and only audio although I could see the previews on the timeline and the interface worked. I restarted the laptop and now I have no audio at all.

When I plug in headphones nothing is recognized at all. I have tried various settings and tweaks. I have uninstalled and reinstalled audio drivers and update programs all say up to date. In the audio playback panel I have a device called Name Not Available for some reason which I've never seen before. In device manager I still have my Realtek Codec and Intel Smart Sound Technology drivers. When playing audio I can see that it is trying to play things as the sound level bar goes up and down indicating sound. I have even used a bluetooth headphone and that comes up in sound devices with a playing sound bar and is recognized as a device but still, no sound.

Can anyone at all help me? I'm completely puzzled as to what has suddenly gone wrong?

Thanks in advance everyone.