So sorry this is happening to you.

I hope that the MRI isn't stressful for you, that the headache goes away asap, and that the MRI is conclusive, and whatever it shows up is easily (and non-invasive-ly) treatable.

I've had one or two MRIs in the past, and they are completely non-scary.

It's a large white machine that looks like a great big white cylinder laying on its side, with a tunnel in the middle, with a raised ramp leading up to the tunnel.

There's a little tray on the ramp, which you lie on, and they wheel you in. It's not heaps of space, but there are microphones and cameras hooked up, so they can see and hear you, so if you feel uncomfortable, you can just tell them, and they will help you.

It takes a while because they do so many different images of whatever they're looking at - mine went for about 45 minutes, I think. It got boring, but I knew that the stiller I was, the more likely they'd get all their results from the first time and I wouldn't need to go it again another time ... It was a good incentive!

There's loud banging and clicking in the machine, as it does its thing ... the banging is at different intervals, and sounds slightly different here and there. Again, nothing scary or painful, just a bit annoying and boring.

I just tried to think of different things while I was in there ... ideas about a holiday or what to cook the next week, or plans for something to write, or what songs I would sing if I had to audition for Australian Idol tomorrow ... anything to keep my mind off it, and to pass the time.

I hope that answers your questions