Re: MRI scan
I shall fiercely resist my initial thoughts my dear, as I know you are serious here.
It's not just the technology changing over 15 years is it, your whole body will have altered as well, so probably a good thing you will have the scan.
You probably already know, but they are noisy old things but they give you headphones to wear and talk to you while you are in the tunnel, so you may feel alone, but you're not really.
All you need to concentrate on is to keep perfectly still.
Try not to worry, you can do it, I know you can.