I have an idea how you feel. I had four-level cervical fusion surgery in April of last year (2015), and while I was cleared six months later to start working my way back toward a full swing it became an exercise in completely starting over. I had to slowly regain my touch inside 125 yards and on the green. Worst of all, I had to put my full swing back together from ground zero. Sixteen months post-surgery, I'm just now at the point where I'm around 80-84, about three to five strokes off what I was used to shooting.
Be patient with yourself---getting your old game back will take some time.