Posted by Marie (206.112.63.134) on December 08, 2000 at 16:49:41:
I have read so much in the last month from this site and have learned so much, but at the risk of sounding
stupid, that I might of missed something-(medical info
tedious to read), does anyone or perhaps any MD have a clue, theory, opinion - anything, of what causes Clusters and why they come at certain times for many.