Migraine Aura?

I've been to the doctor about my symptoms and she says I have classic migraines. My mom has classic migraines as well. My concern is that when reading up on migraines my aura symptoms last all together more than an hour. Usually it starts with a blurred spot in my central vision. This let's me know the migraine is starting. Then that blurry spot is outlined with jagged twinkling lights sometimes more colorful than others. This visual symptom continues to expand across my field of vision until it reaches my peripheral vision and then fades away. Usually this part lasts no more than 20 minutes, more likely average is a 10 minute duration. Then after the visual disturbance, I have a break. Nothing is happening except increased light sensativity. The break can last up to 30 mins. Then one of my hands (usually) fingers get that tingly numb sensation. That lasts only a few minutes. Then that stage is followed by a short duration in which I can't concentrate and can't even comprehend information like from reading. After 20 mins or so that stops and then the headache begins. Often my active aura symptoms last an hour but if you count the breaks in between the start and stop of each aura stage then it can last up to two hours total.

Now I've read online that an aura should last no longer than an hour. So, could what I'm experiencing, be something else? Usually if I take medication when the flashing zig zag lights start, my headache pain is generally mild to moderate.