My dog has been vomitting a lot over the last month or so (puked 3 thursday , 6 times tuesday

, and once today 2 hours after feeding her steak/chicken ). First off, don't say i need to get her to the vet, my parents said no and i am probably going to take her in a few days anyway, so please don't point out the obvious

Other than the puking she seems happy and healthy, and looks like she can last another few years
When she pukes it is mostly watery, sometimes with bits of food, rarely yellow foam, and sometimes with a white substance at the top that is kind of like egg yolk. She usually pukes in the evening to early morning (tuesday she puked 6 times from 1 am to 2:30 am). Before she pukes she drinks A LOT of water (i try to monitor it but alas), and she drinks a lot of water through out the day. After she pukes she tries to eat it and tries to bite me when i pick it up (shes old and generally senile). She doesn't have diarea (sp).
We don't feed her dog food, we feed her "human" food 2 - 3 times a day, though lately at noon only. We also give her milkbone dog biscuits when ever she wants one, she won't eat regular dog food anyway. She is a 16 year old maltese. The food has never troubled her before.
If anyone knows what she has (i think its intestinal worms) please post, or if you need specific info tell me. Also if anyone knows GOOD vets in Winnipeg. Once again, please don't post "TAKE HER 2 TEH VET!!@!@!@!", i will, but first i want to know what she has and what tests to get done. Also please don't post awwww poor dog, i'm not looking for sympathy im looking for info. Sorry if i seem harsh but this is something i am worried about, as i have had her almost all my life and she is practically a human
Thank you in advance