My wires go down the left side of the back of my neck. My battery is under my left pec. I had the whole thing done in one day. The only problem I had was that they had to open up a space to work behind my left ear and after that would hurt like hell at times. That was when pain killers became good friends.
They did tell me that some people have trouble with the wires in the neck. Mine are a little sore still if I press on them but otherwise they never hurt. It's all less with the passage of time. (had mine 10/13 also)

My problem still is the effect that the old meds have on me. I am still taking 4 50/200 ER sinemet every day and they make my legs ache in the muscles. I can walk thanks to the DBS but I still have the feeling of dystonia still lurking.
I think food still effects me like before. I understand that DBS does not fix that.