Sorry Viv. I've been there. Lucky for me, it only lasted for 8 months, and I had days when the migraines were easier. There have been a few times that meant a trip to the emergency room because I knew that if I didn't go there I'd take every pill in the house just to make the pain stop.
Blaming constant migraine on repressed emotion is BULLSHIT! It's just another way to blame the victim when they run out of medical things to try. About 10 years ago I had an MRI because of the constant, unrelenting nature of the pain, and of course it came back: "We can't find anything wrong. Do you want to try these drugs that might kill you? You could drop dead, bleed out, or just kill your liver, but well give you the pills anyways..." Yeah, give me the pills.
I manage now with regular acupuncture and chiropractic, but still occasionally get a blinder (about 1-4 times a month,) and have to take the "drop dead" pills. Still, it's so much better than what you're experiencing, and I'm so grateful that something worked. Before my current combo (which I hope will work forever,) I tried everything except botox. Herbs, food combos, (I have no known food triggers,) other acupuncture, vitamin therapy, some dubious crackpot health products, massage, exercise, more herbs, other drugs (when it's bad, even morphine won't touch it.) The combo they give me when I go to ER is Toradol, Atavan, and Compazine. Of course I can't self-administer such a drug combo. Pot works for the nausea, which sometimes disrupts the headache, but I rarely have nausea with migraine, just pain, and I rarely have pot around anyways.
I hope you find something soon. Don't let them tell you you're mentally ill as a reason. That's a doctor cop-out. Hang in there.