my dd is 8 weeks old, and on oxygen. For the past two nights at her 11 pm feeding she throws up. She is fine all day, but after she throws up (always at 11 and only once) she is fussy for about 2 hours, then she goes to sleep and is fine all night and day. I let it go last night, cause she seemed fine, but it happened again tonight. She has an app tomorrow afternoon, but should i go ahead a give the dr a call?