It's colder in my refrigerator than it is outside!

Without explanation, my refrigerator has chosen to start freezing everything inside of it.  Breakfast for the kids this morning was a surprise when I had to try to melt some milk down for their cereal.  My son didn't mind, but my daughter refused to eat it and had toast instead.  All of the milk was frozen solid and the apple juice was a very slushy slurry.  Bottled water was frozen stiff and the relish was icy too.  It is actually warmer in the freezer (29 degrees) than the fridge (17 degrees), which makes me wonder just where I should be putting the new milk I bought?