Sudden Food Allergies

Melanie
Anyone ever experience food allergies after getting pregnant?
Right when I got pregnant with my first child last month, I immediately could not tolerate gluten, plus more things I'm still figuring out. 
Symptoms were EXTREME pain in lower pelvis and upset stomach, etc. I cut it out of my diet and pain stopped. Just still a few more things hurting me like peanut butter. So bizarre but curious if anyone else experienced this or if it goes away?