Hello! I'm so sorry that you've been dealing with vision distortions with or without migraine pain! So to me, a not-doctor, this sounds like when I experience aura. It appears, sometimes randomly, as this pulsating blindness in the center of my vision, like you've just stared into a bright light for too long. It'll migrate towards my peripheral vision (usually to the right) then disappear. Only for migraine head pain to take its place. For me, it's just a telltale sign that migraine is on its way after and the aura dissipates, which it always will. It can sometimes appear without being followed by head-pain! (though I usually hunker down and prepare by sleeping through it, regardless.) I would speak to a neurological specialist who focuses on migraine. They'll get you some relief meds, usually a of sorts, and help you curb that pain. They'd know if it is in fact an aura that you're dealing with. It's frightening when they appear, for sure. But the blindness always dissipates. I hope this has given you some comfort, in that maybe you know what steps you should take to further get a diagnosis and preventative measures. This journey is a tough one, but it's one that's made easier knowing that we're not alone. Sending positive thoughts your way. Wishing you a gentle and symptom-free day ~ Sawyer (migraine.com team)