Weird "bubbles" on the 4S's screen?

Its hard to explain so I'll use bubbles or spots as the term, but if you look closely at the iphone 4S's screen, mostely visable on the youtube app, you can see little darker spots. Does anyone else have this problem and if so is this glue on the screen still setting that is causing  it , similar to the yellowing, and will it go away after a while or should I go to the apple store?


I don't think they are tired to it. I'm thinking that the yellow stops may go away. But like I said before, I don't think it would hurt to let apple look at it and if u get a new one them good :) just my opinion.
Hope all works out.