Yesterday I noticed that the light in the ceiling of my bedroom was not as bright as it use to be. I looked up and saw that the lighting fixture had a yellowish cast. I took the cover of the fixture off and it was full of water and the metal around it was all rusted. I went in the attic to see if I could see a hole in the roof but I didn't see anything. Can you please advise. I'm sure this could be dangerous because of the electrical wires.