I wonder if you might not have a problem with fructose... pears, berries, onions/ garlic (could be in the salad dressing & on the pizza), and brown rice (I'm guessing the pizza crust used brown rice flour) all have fructose in them ( and there are many other foods that have fructose in them). I myself am trying to figure out problems I may have problems w/ fructose.
unfortunately, i don't have any good links to share for info, but doing an internet search should help you get some info on fructose intolerance.
Hope you get feeling better... and you can figure out what caused the problem (and that it isn't fructose!)
Teams I am on:
Caregivers support (leader)
Celiac & Gluten Free
Leaving 210- ville
Love Kids, Just Don't Have Any
One Person, One Dream (pay it Forward)
People w/ Cerebral Palsy
People w/ DIsabilities on Fixed Income
South Beach Diet