I'm not sure but I guess it's OCD.
After I get used to a song, that song just keep "playing" in my head and I CANNOT stop it no matter how I try.
It's not just the songs I like or right after I heard it. It happens with almost every songs or music or even some advertisements on tv; things with rhyme, I guess.
I can suddenly think about it by accident and then it keep "playing" again and again. The more I try to stop it, the more severe it is; so I have no choice but to let myself think about it or even sing them out.
What makes me worry most is when it happens during my exams or when I am studying, it prevents me from concentrating.
I'm now 18. I've have it many years but seem like it is getting worse since I'm 15.
I used to suffer from depression and anxiety disorder and have a little medication for that in a short time. But I stop taking pills because it bad affect my studying. Now the depression's gone; anxiety disorder happens less frequently...but I've never managed to stop the things "playing" in my head.
It drives me crazy. Please help me out!