Victims of the mysterious “health attacks” on U.S. diplomatic staff in Cuba and China have spoken out for the first time, and some say they’ve been harassed and had their homes broken into since returning home to America. More than 25 diplomatic staffers have complained about the attacks that allegedly used high-pitch sounds and waves that cause headaches and nausea. Victims complained of intense pressure inside their heads and doctors say some have been left with permanent brain damage. Back in the U.S. after being withdrawn from their posts, at least six of the evacuated Americans have reported suspected harassment or surveillance inside the U.S. to the FBI, according to NBC News. Some have found items moved or tampered with in their homes, lights and TVs turned on that had been left off, and some report being followed by strangers. Cuba and China deny any role in the health attacks and the U.S. has yet to name a culprit.