german shepard, female, that is about a year old. she has spent most of her time with my mother and brother, as I have been away at school. my family has been away for about 3 weeks, and the dog and i have been getting to know each other, and up till recently it went generally smoothly.
it started with her turning over her food and water bowls in the morning before i left for work about 4 days ago. i come home to let her out, and she starts jumping on me, and attempted to bite me several times. this has now been a pattern over the past 4 days. she jumps on my back and then proceeds to try to bite me, relentlessly. i am unsure of what to do, and i am scared that she will actually draw blood (she's made contact twice so far).
any possible reasoning for this?