Melody,

I've talked to people who have had spinals, and absolutely no headaches at all.... my doc had me lay in her office for about two hours - then sent me home where I had to sit in a car for about an hour and a half (I had the seat reclined) - when I got out of the car the back of my sholders, head, and neck were really hurting - and the pain was severe for about 5 days (had to lilterally lay flat in bed the whole time) .... I think if the doc had let me stay longer then two hours I might have been in better shape...... (by the way, the actual spinal itself didnt hurt at all)

Sometimes if you do get a spinal headache they do a "blood patch" - inject some of your own blood into your spine to replace the missing fluid and it can be effective... for some reason because I also had sholder and neck pain my doc said it wouldnt work so just had to lay there....

So, I'd just try to get as much laying down time before you leave as you can - just in case (I believe they used to tell people six hours)