I have been taking it religiously for about a week now.  Thanks for the link, RichardN.  I am taking 750mg in the morning and 1500mg at night right before bed.  I was already about 3 wks into the cycle when I started my regimen.  The first night I woke up with a real dinger, but hopped in the shower and it fizzled out quick and I was able to go back to sleep... and sleep the night through, which hadn't happened in 3 weeks.  The second night, I awoke with another, but the pain was much less than the night before.  I hopped in the shower to be on the safe side (I take them a lot when they come, they are relaxing and comforting if nothing else) and it was gone.  I slept the rest of the night through again.  From the third night until now, I've been free and have slept so well.  I don't know if it's coincidence or that the ugly weed that is swallowing the south really works, but I'm inclined to believe the latter.  I have still been getting some minor headaches during the day, but I'll take those any day over my night time stabbings!