Waiting... waiting...waiting!
I know waiting can be very stressful but try not to stress too much. You are lucky the process is progressing this quickly for you (and i hope it continues to do so). I attended VRD back in Sept last year. My references were checked withing a few weeks but had been on the waitlist from there ever since. I was only just requested to attend medical a few weeks ago.... now waiting again - hopefully for a start date!