I have a property with a 3 phase underground power line. The power line doesn't go near the house but happens to pass directly underneath the shed, which is in the form of a sea container. Whenever I'm working inside the container, I feel sick. The symptoms are similar to those described by people living under high voltage power lines - nausea, dizziness, fatigue headaches and stress. These symptoms seem to occur most during the day, I just don't feel right. My belief is that the 3 phase power line located 1.2 meters below the ground has something to do with it.