Congrats on being cig free....it can take a while to detoxify from all the toxins. I too suffered from migraines, they are the worse, but have found I have them maybe 1 time a month now, if that, since switching to vape. I'm going on 10 months so just hang in there and things will get better. Oh yeah, make sure to drink plenty of water. One, because pg can be dehydrating and two it's just healthy

Best Wishes to ya.
Ps. If your migraines persist you could try reducing the pg intake by using
ejuice higher in vg. If this doesn't help I'd see a doctor. Remember, Drink lots of water!