you're right. while there is no pain involved with my aura, it is a harbinger of pure shit. just imagine having no pain right now but KNOWING, with absolute certainty, that in 30 minutes you're head will be decimated with pain.
That feeling is awful, seeing those things and knowing you'll be in pain and unproductive for a couple of days. I tend to have migraines when I'm experiencing stress, which makes it all the more stressful. And not being able to read when you're having auras sucks as well. I also find that I'm really sensitive for smells during the headache part: certain smells (perfumes and deodorants for example) make me really nauseous and make the headache worse.
Also, when the headaches are over, I usually have “sore brains” afterwards: they feel like they've been on fire. I also have trouble concentrating after the headaches. Luckily, I never had any episodes that lasted longer than two days.
Migraines suck.