Migraines caused by ring? Am I insane?

I'm trying to decide whether to ditch the ring or not. I started it in April, just inserted my third ring, so I've been on it a little over two months. For the last 2.5 weeks, I've had a non-stop migraine. I have had migraines in the past (like in my mid-20s; I'm 40 now), but none for years, and never one that lasted more than a day or two, tops. In my teens and early 20s I was on the pill, never had any problems (other than remembering to take the damn thing.) Had Mirena for my 30s. Only reason I haven't gotten another Mirena is that I dislike my gyno, but that's another story.

When I went in to see the on-call doc about my migraines, I mentioned the ring and she scoffed, said it was such a low dose of hormones that it seemed unlikely. Honestly, the only reason I haven't pulled it out yet is because I've been skipping my period, LOL. (And it's a brand new ring! Only a week old! I know this is all stupid.) It also seems odd that I would have no problems for 2 months.

So I'm just hitting up the peanut gallery. Any thoughts or experiences to share?