I get them, but nothing as bad as what's been posted. My vision blurs, but no blindness or tunnel vision. My aids: Imitrex if taken at the onset; Excedrin Migraine if taken at the onset; aerobic exercise; sitting in a hot shower in the dark. The last two relieve the pain, but only while exercising or showering. I've tried a brain freeze (ice cream real fast) and it worked once. I get them from stress, fatigue, allergies (like red wine), and changing my sleep pattern. Luckily, I've never had one start while on a long ride.....doesn't sound like fun at all!