I had four disc's replaced 2 years ago . The Dr. left some screws loose. Now I am "swimmy" headed and depressed and feel weak. I am afraid to have anymore surgery. I was having severe pain between my shoulder bldes and now that is gone but my left arm is smaller and weaker that before and my lower back has no discs now. I want to know is this a symptom of neck problems? The swimmy head...the depression and I cannot sleep!