Hi Luna -- I'msorry this is happening to you but I'm certainly glad you've found us..... We all help each other because we've been through the same "stuff" .

I had my first MRI in 1990 and was so terrified it took two of the aides to help me into the MRI. Now I understand it's nothing but a fine machine making noise.

It sounds like you're going to be in a truly great hospital if you're being offered sedation (never happened to me !!) and taking music (I am offered music). Tell the people, the techs working the machine, how frightened you are ... they WILL help you.
They care .. they want and need you to be OK.
They will be watching you very, very closely. The slightest move you make will be very visible to them.
They can hear anything you say because you will be given a microphone.

I promise you'll be OK .... I know, honest. In 2005 I started having an MRI of my head every 3 months and it hasn't stopped yet.