In a letter dated June 29, 1801, Beethoven told a friend in Bonn about a terrible secret he had for some time. He knew that he was becoming deaf. For some time, he had spells of fever and stomach pains. A young man does not expect to become deaf, but now he was starting to admit it to himself. He was finding it hard to hear what people were saying. Just at the moment when he was starting to become known as one of the greatest of all composers, it was a terrible blow to realize that he was losing his hearing. In 1802, he stayed for a time in Heiligenstadt which is now a suburb of Vienna but at that time it was outside the city. There he wrote a famous letter which is known as the "Heiligenstadt Testament". It is dated October 6 and told about his rising frustration at his deafness. He asks people to forgive him if he cannot hear what they are saying. He said that he had often thought of suicide, but that he had so much music in his head which had to be written down that he decided to continue his life. This very emotional letter was found amongst his papers after his death. He never sent it to anyone.