Should I take my 1 yo to the doctor?

So this morning around 6 am my daughter threw up all her milk and was vomiting on and off most of the day with no fever or any other symptoms she was just very sluggish and just wanted to cuddle all day , nighttime comes and it’s about 8:30/9 pm I chose not to give her her milk and instead gave her juice to keep her hydrated she took it fine but it is now 11:30 pm and she just vomited all her juice and the few crackers she had earlier but still no fever or any other symptoms I was thinking of calling her pediatrician and making an appointment but I don’t want to be “THAT” parent if you know what I mean any ideas on what could be going on? I thought maybe the stomach flu but no other symptoms have shown :/ she drinks this kind of milk and juice every day so I’m not sure what it could be