I had brain surgery three years ago to drain subdural and epidural hematomas, which were (supposedly) causing the increased severity of headaches I have had most of my life. Since that time I am constantly singing in my head - involuntarily repeating various tunes, snatches of music, songs, poems etc., whenever my brain is 'in neutral', and sometimes even when I am trying to concentrate on something specific, so annoying and distracting that I have to start counting to try to override the symptom. The particular melody I repeat over and over in my head, often speeding up until it is barely comprehensible, especially if it's a song that I don't know all the words to - the same theme can last hours, even days. My neurologist has no explanation other than the brain's being 'overactive'. I take various brain-calming medications (Inderal, Nortryptiline, Clonapin) to help with my contining headaches, but these do not stop the music!
Anybody out there with similar symptoms?