My apology, now that Greg poinited it out, I noticed that she represents both sides. I agree with Greg, this is called Dual Agency and most of us do not do that due to conflict of interest - where your concerns might come from.
Since this is after the fact where you have already sigend on with her to use her as your agent, she is already representing you. However, your purchase contract is really with the Broker of the agency rather than than agent (your agent), I still think you need to talk to her about your concerns. However, if you still do not feel comfortable, go to her broker and have the broker assign another agent to work with you before you switch to another broker.
Although I don't do it and I don't believe in it, there are times when dual agency works, but certainly not in your case.