Yep, add me to the list. I'm intolerant. I had duck eggs several times after my ducks started laying. I was also getting a bit of stomach pain each time but didn't make the connection until one day I was doubled over in cramps and spent most of the day curled up on the couch waiting for it to pass.
I do chicken eggs just fine, have no history of food intolerance. My other family members eat them just fine.
I've been having stomach issues for awhile now, and a few weeks back I went on a 10 day master cleanse. When I started eating again, I really started focusing on adding pre and probiotic foods to my diet. The cleanse was great, and my stomach issues really cleared up. Finally I started introducing duck egg again.
Started with baked goods that had 1/8th of an egg per serving and the 1/4. I did just fine on these things. So then I tried 1/2 a duck egg in my scrambled eggs for breakfast. And I was so sick again~~~ For hours. I guess no more duck egg for me.