Dog swallowed rocks

Yesterday my dog (great dane bull terrier mix, 40 pounds, very skinny,eats alot but still very skinny) ate some rocks (not sure how many but she was outside for 2 hours) the rocks are about 1 Inch in diameter, and (still yesterday) she threw up about eight times throught the day, but only 2 rocks have come out. what are signs i can look for to know if she may have a blockage. today she has been pretty lethargic and does not want to be alone, she ate a bite of soft dog food (purina) and then left it. i suspect she hasnt had water since yesterday. she has the "puppy dog eyes" when she looks at you. she is 2 years old.has not had a bowel movement or urinated today. please please help.
we are taking her to the vet l8r 2day i posted this because we are very low on money and we can only go if we have to, im only 13! i love this dogshe is the best thing in my life and i will use my college fnd to save her if i have to!

[Jaybay]

Your dog is in trouble and needs a vet NOW.  I can't stress that strongly enough.  A dog who not only isn't interested in eating, but also refuses water and isn't urinating or defecating in in serious trouble.  Please don't waste time speculating and find an ER vet tonight. Use the college fund, or apply with Care Credit (you can do it online if the vet doesn't accept it).  It's entirely possible your dog needs surgery to retrieve the remaining rocks.  

If this happens again in future (assuming she survives this round) the earlier you get treatment, the less traumatic and expensive the treatment will be.  If a vet clinic or ER vet clinic offers endocsopy, the rocks or any other foreign material can be removed via tools in the scope.  Much better than waiting until it's passed into the intestines and requires a major surgery to retrieve.  (I'm mostly writing these comments for anyone else reading since it's obviously past that point with your poor dog.)

Your dog is in danger of dying if you don't seek veterinary help tonight.  Please don't wait!

[hb500]

apparenly either you didt read the last paragraph or i wasnt clear.  She was already scheduled for that night i wasnt going to change that, i couldnt go earlier since im 13 and cant drive and had to wait for my mom to get off work.    UPDATE: we went to the vet, she was dehydrated and was givin fluids, and an anti-vomit so she wouldnt throw up the liquids, she was givin an x-ray and they found two rocks by her butt. they said the should easily come out on their own. UPDATE: she is fine and has been eating and drinking and has passed the first rock. we ended up only spending 300