depression
"My husband has had depression and at times severe anxiety for years. He would have anxiety attacks so bad he was sure he was having a full blown heart attack every time, and his anxiety prevented him from sleeping because he was sure he would die in his sleep. His depression was bad as well, he was sure the world would be better off without him. He tried different medications but nothing really worked, some seemed to improve things a little bit but for the most part I had given up hope that any of them really do much. Then he tried Zoloft. For him, this was the one. It took the edge off after about a week, after two weeks I could definitely tell a difference. After about 6 weeks he was back to his normal self."