....now that's a good "problem" to have! similar success here with O2, which made the decision about when to use the last resort triptan harder. in my case had to use a combo of factors to know when. kinda depends on your cycles...mine 5-8 weeks on/off for yrs so knew just about where i was in most cycles (much harder when turned chronic, but cycles within that too). the worst hits (except for very last) were midcycle, always on high alert then. i knew only O2 needed for start and end of cycle hits. other factors: the faster a hit came on the more alert to a last resort screamer i had to be....and last but totally unexplainable, sometimes i could just tell...there was a certain "exquisiteness" of pain that was missing from most other hits. got pretty good at it and rarely missed....but always rueful since it meant being an "experienced" clusterhead.....which noone aspires to. may you continue to rapidly abort and not have to worry about "how bad" this one is gonna be
...thank you for your reports....somebody somewhere is sure to be helped reading your experiences....