my sister has been vomiting since 4am..it is now nearly 10am. the vomitus lessens progressively but the nausea is constant and hourly and then when that sets in, upchuck. no fever , no pain then (except when the nausea sets in) no blood in vomitus, just her dinner initially and then just regular ol vomit. she doesn t feel week. her latest, abt 5 min ago, was a tummyache which resulted immediately in her passing motion (soft to watery stools ). the dinner she had just before she went to bed was at a restaurant with my husband, brother-in-law and myself but the rest of us are fine. when we got home, just before bedtime, she and i had an acai fizzy drink from GNC but im okay,