serious dawn effect

I am a 33 year old type 1. I have had good control for the most part, but lately I’ve had some serious dawn effect problems. I take Levemir twice a day (about 15-17 units at 8am and 8pm) and Novolog at meals. I take the Levemir twice a day instead of once to help make it work consistently across a 24 hour period.

Last night I had a big meal and took about 11 units of Novolog. A couple hours later, my blood sugar was 55. So, I had a very small snack (20 carbs maybe). I was up at 5 and my blood sugar was 182. Okay, not too bad. I actually took 1 unit of Novolog because I know it tends to go up this time of day. At 8:30, just 3-1/2 hours later, I got and tested and it was 342. What the ****???

This is ridiculous. I suppose the big meal I had last night might be to blame, but when it jumps up like that in such a short time and without having eaten in 7 hours or so, I feel helpless. THoughts??