What makes the shower smell like a sewage/rotten eggs after showering, it smells the entire bedroom up not to mention the whole upstairs area. The master bathroom smells of urine around the toilet area and the drain area in the tub. The house is about 30 years old but has been remodeled, especially in the bathrooms. We bought the home about 4 months ago and the first time I showered there was this horrible odor, later on in the month the urine smell developed. Also other drains in the house don't smell so wonderful either. Could this be caused by something clogging or stuck in the drainage system. I am baffled to death about this and wondering should I call a plumber since the house is under warranty, plumbing etc. or is this something that could be repaired ourselves. Please help...I have practically cleaned to death.