Hives

Has anyone else broken out in hives while pregnant? I used to have breakouts in elementary school and haven't had an outbreak in more than 20 years! This is my second pregnancy (never got hives during my first) and anytime I eat something I break out all over my stomach, thighs, breasts and shoulders. I finally broke down and woke my husband up at 11:30 pm last night to buy me some Benadryl!