A close friend of mine started feeling nauseous followed by headaches just over a year ago, when a new tenant moved into her building (separate appartments). It carried on even after he moved out. He was a satterlight engineer and they did not get along. In fact he made friends with the people in the street who hate my friend, probably because she owns the nicest house and the best view. They've actually been harassing her for years. Anyway after this guy moved out the new guy noticed that the previous tenant had messed with the electronics so badly he thought the guy was either insane or a genius because he couldn't figure it out. She gets affected mostly the same time (between 17:00 and 18:30 but it happens at other random times too which is why she thinks it's being controlled manually) and has found sleeping in her house almost impossible. If anyone has had a similar experience or can offer any insight please respond.