I am wondering, if you had a toddler (26 mos) who has NEVER vomitted in her life vomit two nights in a row, would you be worried? She is telling me her tummy hurts during the day around her belly button. Her tummy is enlarged. No fever, chills, lethargy, snot, etc. Pretty good mood all day. Sunday night...vomit around 2 am. Ate less Monday but still good. Monday night at 2 am, vomit. Tuesday nothing. We took her off dairy, then allowed about 2T on Saturday of yogurt. But could she have a bateria or something?