Jane,
When the GP wants to know, then He should contact the Clinic himself. He will likely get to someone quicker as you alone. He could fax the results to the doctor at the clinic with the request to please call him to discuss your case. You could try to fax them yourself if you have the possibility,and ask someone to please call you, or give you an appointment ASAP. If the clinic wants the results and were concerned about it then they should give you an appointment to discuss it and plan what further tests/treatment they recommend. Sorry but the GP telling you he wants to know what to do, is like the judge calling the lawyer asking what the cleint wants.
Good luck to you,
Monique