You only have one agent representing you for all the work you do. Her efforts are directed toward helping you get work and get paid more. You can call an agent and ask for updates on what is happening. An agent works for you. Send your resume and a cover letter and you will be contacted for work samples if you fit a clients' needs.
Recruiters keep a large database of resumes.
In your cover letter tell the recruiter if you are open to relocation and where. Don't expect a recruiter to help you find work. A recruiter will not call you unless your experience and skills match one of the job openings he is trying to fill. An agent makes money only if her clients are working, so she wants clients who are easy to employ. You must show an agent that you are a professional.