6 week postpartum check up

I have my 6 week appointment today and I am terrified. I feel great.. I stopped bleeding 3 weeks ago, I feel happy and content, my stitches are gone, and I have no pain anywhere. But I had a very hard delivery that I was completely not expecting. I am very scared of having anything put up my vagina again. Honestly to the point that I would rather hide than go to this appointment. Someone please tell me what to expect so I can prepare myself.