Because I'm a mystery Sally! Clear MRI's but the sx keep on coming.
Also in the public system here in Aus they're FREE! I've had to wait up to 8 weeks but there's no cost. Private costs $300 but you can get in within a week. My first one, the neuro claimed as 'urgent' so it was both free and the next day!!
And this neuro is an MS specialist who works at the hospital so she orders them like antibiotics I think?!

Thanks for your tips everyone - yes, I need a 'heavy' music CD.
I remember after my first one, the next day I was at the deli at the supermarket. The alarm went off for the hot chickens to be taken out of the oven. I had this horrible memory of the MRI sounds the day before that sounded so similar! I avoided the deli for a few days after that!