Great news about your surgery. I have to agree with Barb, you were lucky. I am 3 months out from my neck dissection and I still do not have full function of my right arm. It is better (I couldnt lift it at all for the first 3 weeks), but still have some discomfort and trouble lifting at the end of the day.
I also was scared of the surgery. I was so afraid people would look at me like I was a freak for having a big slit accross my throat. You are right, no one notices unless I point it out.