I am just about two weeks post op and I DID have the IV.
I was too was very uneasy about the anesthesia. I had general three times before all without a hitch. This time it was "twilight anesthesia", even less risky, but for some reason I was very uncomfortable with the idea.
I recall laying down on the surgical table. My arms were spread out wide. The anesthesiologist said "I'm gonna insert the IV, may pinch a little", it did but I was still awake. About 45 seconds later I recall saying "I am feeling something, is that the anesthesia?". He replied "I gave you a little something to get started", and about 20 seconds later I was out.
Never felt anything during the procedure. I woke up completely unaware of what I had been through the last two hours.
Two weeks later, thrilled I did it.
Normal to be nervous, just don't let it consume you, not worth it, no need.