I've done the bathroom floor thing more times than I can remember.

Roger also on the sleepy thing. I don't fall completely asleep, but I have noticed that pattern that just before the migraine breaks up, you get sleepy. For me it's only about 15 minutes. It's a great signal that this thing is almost over (until the next one). It doesn't seem to be the Imitrex, since I get the same sleepy signal when the headache terminates on its own. I've dealt with these some 36 years.