Nausea when pooping.

Ashley • Mommy to a beautiful baby girl born May 26th! Second beautiful girl born April 30th! 💜💜 #girlmom

The last couple of days I have been getting very nauseous when I poop. I doesn’t happen before I go only once I’m actually on the toilet going. I get super hot and sweaty and nauseous. What could be causing this? 29+6 weeks.