The pins and needles you describe are common after many surgeries - they are a sign that the nerves inevitably cut or irritated during surgery are regenerating. This can take a long time in some cases.
After some of my surgeries, the pain was a little different from day to day or week to week. Other times it seemed far away from the surgical site - all of this is normal, unless it is accompanied by excessive swelling, redness, or feeling hot to touch - these may be signs of infection, and warrant a call to the surgeon.
Are you still icing a couple times a day? This can help ease the sensations, as can getting up and walking around.