Hi M.:
Here is my story...
I had my second D&C about 3 years ago. I felt fine initially and then a few days later I started to get a headache. The headache got really really bad....to the point where I couldn't lift up my head. I went to the emergency room at Saddleback Memorial because it was the weekend. I told them that I had a D&C and they said that would not cause such pain to my head. They checked me for everything including giving me an expensive MRI and all sorts of blood work. They could not find anything wrong and they gave me some muscle relaxers. This did not help with the pain.
The next day I went to my primary care physcian and she said it was a migrane due to the DNC. She said that the DNC through off all of my hormones. I had never had a migrane before so I didn't know that such pain could exist. She gave me some migrane medicine and within a few hours I was feeling much better. I felt back to normal within 24 hours.
So, yes, you can get bad headaches and feel off after a DNC. However, when I had my first DNC about 6 years ago, I felt fine with no problems.
For me, my two experiences were very different.
I am the mother to two little girls (22 months and 5 years old).
K.