Yep. Not sure what the procedure was, but I had a gyno procedure which gave me debilitating migraines (the stroke-mimicking ones w/slurring of words, etc.).
My experience: I had migraines early in life but they were periodic and not debilitating... but then at age 19 my gyno gave me a hormone-based shot to treat my endometriosis. Within hours, I had the most skull crushing migraine of my life. After that, all my migraines were skull-crushing and they became chronic.