waiting...
Two weeks after my 1st intervew I recieved an email from medical stating that I had to clear up certain medical issues with my doctor and to fax them the results asap.... following that it took a further month and a half before they got back to me and invited me to HKG.
Therefore at this time no news can be good news! You will get an email from medical if they have concerns.... and if you do... thats a good thing cause it means that they are still interested in you.
Good luck and keep us posted!