I get visual aura's too before a migraine. I see what looks like jagged silver pulsating lines that get bigger and then fill my field of vision. It almost looks like this ^^^^^^ only curved, silver and shimmering. Makes me sick.

I usually blast it with Ibuprofen and coffee. My Dr gave me this prescription for peope that have seizures. I hate taking anything that's not natural, so I stopped. I figured I'd take the path of least resistance and use an over the counter med rather than a prescription.

If the weed helps, then use it. IMO it's better to use something natural to get relief than something concocted in a pharmacy.

Hope you feel better