Lately all my dreams are bad and work related...

It seems like the only dreams that I really remember as of late is bad dreams. And recently they're almost all work related.

Take a dream I had a few months ago, for example:
My current job fired me for some strange reason, and I had to go back to my old job. I told my coworkers that unless it was directly related to the job, or I initiate it, to not talk to me.

And then the dream I had last night:
It was packed in the store so I came in early and opened up on an express register to help alleviate some of the crowd. At some point, while I was up there, there was a jar that broke and the contents spilled out, so I had to page Maintenance to come clean it up. Unfortunately, something that I'm always afraid will happen when I page did happen. I stuttered. there were these extremely rude customers that not only took over my station while I was helping another customer, something they're not allowed to do. Not only that but when I stuttered they started to make fun of me and it only got worse when I tried to explain why I stuttered. And the worst part is, no one did anything about those customers.

What could all this mean?

 

I do have a slight stutter. It's worse when my anxiety acts up, which it almost always does at work.