I can't believe it doesn't give you horrible gas. Even today, not pregnant, raw cruciferous vegetables give me very painful gas.
I have read that raw "sprout" veggies like these, radishes etc can harbor dangerous bacteria, primarily salmonella.
Food Safety During Pregnancy
I wonder if you have the chewy/crunchy craving. During my late stages of a twin pregnancy, my iron levels dropped a bit and I had this overwhelming urge to chew on things: ice, straws, my toothbrush.
http://www.babycenter.com/404_what-c...anc_1186643.bc
I may be way off, but when I read the ingredients of your salad I noticed that they all require a lot of chewing (except the tomatoes, of course).