Posted by (Mr.) Andrea on January 29, 1999 at 22:22:55:
In Reply to: Why One Side? posted by Bob P on January 29, 1999 at 11:20:51:
Once... only once (Thank God)... I had a Cluster Headache on both sides simultaneously. It happened more than 10 years ago, and it still scares the hell out of me... it was UNBELIEVABLE! Has anybody else ever experienced this?