Thanks for the replies guys- This is really interesting! Im glad Im not the only one who is effected so profoundly by music.
Just2b - I've had similar experiences. Just last week I went on a mission- listening to loads of tracks I haven't listened to for years. Not really sure what happened once I got a couple of tracks in - my brain went whizzing off somewhere else and I vaguely remember crying on the sofa like it was the end of the world. No idea why but it was hours before I came back down to earth.
Alwayschanging2 and Yazeena88 - your posts made me laugh --- Linkin Park brings out my feisty side too

And there is a very real risk of me thinking Im Maddie Ziegler every Sia comes on the TV/ radio. I always forget Im a 38 year old heffalump when Im prancing around the kitchen doing pad de chats!