Hello, my problem is similar but different as well.
I own a pair of Sony DR-BT21G Bluetooth headphones, which up until recently worked just fine. They have always been a little quirky, I.E. will not work as headphones unless there is already sound playing when connecting, and have some crackly interference here and there. These are miniscule problems, though. I really don't mind an occasional crackle or sound cut out, as long as it plays my music/movies most of the time. However, just yesterday they began showing a new problem. When I play music on these headphones, the sound plays normally for about ten seconds, then it cuts out fifteen times, staggering the sound to the point of it not being listenable. Then it's fine for another ten seconds, then staggers again, cutting out over and over and over and over again. It does this until you want to shatter the headphones on the wall and buy some analog piece of crap headphones that at least play the sound without losing connection over and over again. I can't listen to my music at school anymore. More importantly, they cost a pretty penny, and they feel like really expensive earmuffs. Please help.