my 17 month old vomited for two days straight probably ten to twelve times, she also had diarreah and fever and would not eat nor drink anything. Last night we took her to the er and they gave her a popsicle and zophran and motrin and sent her home, today she did not vomit at all, but ran fever, we gave her tylenol and motrin and fed her crackers and cheetos and peaches, she also drank a whole lot of sprite. Tonight, she is vomiting again after taking a three hour nap and her fever is coming back up, should i take her to the doctor and do you think it is a virus or something else?