I don't understand

Cassie • 🎉🎃🍁🍂 blessed with a beautiful 3 year old boy a 2 year girl and a 9 week girl👨‍👩‍👧‍👦

Ok it's 3.12am my daughter the last half hour has been waking up coughing and I can hear her tummy making all these kinds of noises, I thought she would have had a poo so I changed her and there was nothing, so i put her back to bed and made sure she was comfy, wrapped in her blanket though she is feeling a little cold. comes back into my room to hear her cough again and she's like trying to be sick so as I run through I find her heaving up and her tummy tensing making a really lot of noises, when I picked her up she was dribbling bits of whatever was coming up but that was it she hasn't been sick as of yet, could anyone help please on what to do or what this could be, she's only 10months and she's eating everything like normal, she's not on formula milk and is on cows milk, she also has water but doesn't like to drink it.