C4-5/5-6 Anterior Cervical Discectomy and Fusion

I was supposed to have a one level fusion about a year ago and I couldn’t get clearance from my primary care doctor due to having severe anemia. I have since gotten that under control and now I am scheduled to have the surgery in October except now I have spinal cord compression so the surgery is now a 2 level fusion with the use of plates and screws. This surgery scares the daylights out of me. I am worried that I will come out of this worse off than I am now. I know there is a chance of swallowing issues. Can anyone tell me their experiences and if their outcomes were better or worse than before?