I have the same problem
day one is excrutiating i cant sleep and whats worse im allergic to ibuphrofen (sp?)
It sucks only relief i get is a super hot shower and aiming the water right at my uterus that about it.I also tend to vomit which is weird The rest of my cycle is fine.
Ill be following this thread and im hoping you find some relief too hun it is so unpleasant .