Welcome to JustAnswer! I am a licensed veterinarian and would be glad to help!
How often is the vomiting?
What color are the gums?
she vomits each time she drinks, she is not "lapping" up water, but acts like she is biting the water and "scooping" it up.
I was not able to see your questions yesterday. I am at work right now and can't look at her gums, but I can get a friend to go to the house and let me know.
I will keep checking back to see if you have responded.