i have a six year old boy .past7 dayshe has been vomating about 2 hours after he has gone to sleep of a night .and says his tummy is sore. he has been to the doctor 2 times first time i was told 24 hour bug. but today the doctor said he will need a ultra sound on his tummy . but i cant get in till 4 days away its booked out .but my son has been sick again tonight same time as other night and now will most pro sleep all night any help please