I am 3 weeks post op for Alif fusion of my l5 s1 and I am 42. It's been a rough rd with many complications with nerves in my legs, flu 3 days discharged from hospital, constipation the loss of appetite, new intense itching and the yellowing of my eyes along b with dark orange urine. This is all going on besides the normal recovery. My question is has any one experienced this? Should I be worried ?