With regards to MRI's ... they are grim. I had one done in November and they do make you feel claustrophobic and the bangs, clicks and knocks that the scanner make can be pretty unpleasant.
I remember seeing my neurologist after having it done and he asked me about it and I told him that it made me feel claustrophobic. To this he replied, "They're a good place to go for a sleep". I said "Sorry?" ... "I don't know what you mean?". To which he replied, "They're a good place to go to hide from children". Hmmm.
RANDOM or what?!
I should have had alarm bells ringing then really!