iPhone 4s Strange Camera issue

I haven't been using my iPhone 4s long, and only just recently tried taking photographs. Firstly, i noticed when i take photographs in poor lit areas the flash would white wash the picture on 60% of the photo. I do not have any kind of case or screen protector.

secondly, when i observed the camera lens to check for finger prints or scratches i noticed that something inside the glass is slightly covering the lens.

I looked on Google for pictures of the rear of the iPhone 4s and i came to the conclusion that my camera has something inside that shouldn't be there.

When i was trying to book a service or return throught apple website, they dont acknowledge anything at all to do with the camera, and the only thing it says in the technical support is to restore iphones software.

Anyone had anything like this?

ill try and get a picture up for you to see, but basically if you look at the camera glass there is something i can only describe as a "half moon" covering the actual lese.