Hello this is my first time ever trying to figure out an illness online, I am at my girlfriend's house and she has been vomiting all day. She has been complaining about stomach pain and now she is vomiting green, which I believe to be bile, but I am not sure. Should I be concerned?
Get her to a doctor... you never know what might be going on and at the very least she may need IV fluids to rehydrate herself. You'd be surprised how quickly one can get dehydrated just from vomiting... Good luck and God bless!
I should stress - get her to a doctor now! Don't wait for an appointment. If it's too late for her to be seen by her regular doctor go ahead and take her to the ER for assessment and treatment.