Shame man, lots of fluid and just rest. Climb in to bed and just lie there. Your body is really having to do so much right now, that the best thing is to not give it any more work to do.
I would wait it out for the OBGYN - the GP is not going to be able to really give you anything.
My OBGYN also gave me a vitamin supplement/energy thing to take each day - Vitathion, which helped.
You can use a saline spray to clean out your nasal cavity.
Maintain your fluid intake, try and rest, watch that your temperature does not spike - it might as a fever sets in, so keep an eye on that.
Good luck.